diff --git a/lab-python-functions.ipynb b/lab-python-functions.ipynb
index 44d337b..0b5137b 100644
--- a/lab-python-functions.ipynb
+++ b/lab-python-functions.ipynb
@@ -43,11 +43,159 @@
     "\n",
     "\n"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 85,
+   "id": "18c7214a",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# Define a function named `initialize_inventory` that takes `products` as a parameter. \n",
+    "def initialize_inventory(products):\n",
+    "    #Inside the function, implement the code for initializing the inventory dictionary using a loop and user input.\n",
+    "    inventory = {product: int(input(f\"Please input the amount of the product {product}\")) for product in products}\n",
+    "    #return dictionary\n",
+    "    return inventory"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "c8669383",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#Define a function named `get_customer_orders` that takes no parameters. \n",
+    "def get_customer_orders():\n",
+    "#Inside the function, implement the code for prompting the user to enter the product names using a loop. The function should return the `customer_orders` set.\n",
+    "    customer_orders = set()\n",
+    "    \n",
+    "    while True:\n",
+    "        order = input(\"please enter the product you would like to order:\") \n",
+    "        #add to customer_order\n",
+    "        customer_orders.add(order)\n",
+    "        #ask for more\n",
+    "        next_order = input(\"Would you like to order something else? Please enter 'yes' or 'no':\").strip().lower() \n",
+    "        if next_order == 'no':\n",
+    "            break\n",
+    "    #return set\n",
+    "    return customer_orders"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "c7a40696",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#Define a function named `update_inventory` that takes `customer_orders` and `inventory` as parameters. \n",
+    "def update_inventory(customer_orders, inventory):\n",
+    "# Inside the function, implement the code for updating the inventory dictionary based on the customer orders.\n",
+    "   return = {product: (quantity -1 if product in customer_orders else quantity) for product, quantity in inventory.items()}\n",
+    "\n",
+    "   "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 97,
+   "id": "64a9b017",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#Define a function named `calculate_order_statistics` that takes `customer_orders` and `products` as parameters. \n",
+    "def calculate_order_statistics(customer_orders, products):\n",
+    "# Inside the function, implement the code for calculating the order statistics (total products ordered, and percentage of unique products ordered). \n",
+    "    total_products_ordered = len(customer_orders)\n",
+    "    percentage_unique_products = (total_products_ordered / len(products)) *100\n",
+    "# The function should return these values.\n",
+    "    return total_products_ordered, percentage_unique_products"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 99,
+   "id": "034aafc1",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#Define a function named `print_order_statistics` that takes `order_statistics` as a parameter. \n",
+    "def print_order_statistics(order_statistics):\n",
+    "    #define order_statistics\n",
+    "    total_products_ordered, percentage_unique_products = order_statistics\n",
+    "\n",
+    "    #Inside the function, implement the code for printing the order statistics.\n",
+    "    print(f\"Total products ordered: {total_products_ordered}\\n\"\n",
+    "          f\"Percentage of unique products ordered: {percentage_unique_products: .2f}%\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 104,
+   "id": "fd622d02",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#Define a function named `print_updated_inventory` that takes `inventory` as a parameter. \n",
+    "def print_updated_inventory(inventory):\n",
+    "#Inside the function, implement the code for printing the updated inventory.\n",
+    "    for product, quantity in inventory.items():\n",
+    "        print(f\"{product}: {quantity}\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 105,
+   "id": "36fd9f60",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "Order Statistics:\n",
+      "Total products ordered: 2\n",
+      "Percentage of unique products ordered:  40.00%\n",
+      "\n",
+      "Updated Inventory:\n",
+      "t-shirt: 98\n",
+      "mug: 64\n",
+      "hat: 31\n",
+      "book: 78\n",
+      "keychain: 45\n"
+     ]
+    }
+   ],
+   "source": [
+    "#Call the functions in the appropriate sequence to execute the program and manage customer orders.\n",
+    "# define products\n",
+    "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "inventory = initialize_inventory(products)\n",
+    "customer_orders = get_customer_orders()\n",
+    "updated_inventory = update_inventory(customer_orders, inventory)\n",
+    "order_statistics = calculate_order_statistics(customer_orders, products)\n",
+    "#print\n",
+    "print(\"\\nOrder Statistics:\")\n",
+    "print_order_statistics(order_statistics)\n",
+    "print(\"\\nUpdated Inventory:\")\n",
+    "print_updated_inventory(updated_inventory)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "26531521",
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -61,7 +209,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.14.2"
   }
  },
  "nbformat": 4,