diff --git a/lab-python-functions.ipynb b/lab-python-functions.ipynb
index 44d337b..f225b8c 100644
--- a/lab-python-functions.ipynb
+++ b/lab-python-functions.ipynb
@@ -43,11 +43,169 @@
     "\n",
     "\n"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 44,
+   "id": "bf334877",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "\n",
+    "\n",
+    "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "\n",
+    "customer_orders = set()\n",
+    "\n",
+    "inventory = {}"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 45,
+   "id": "640786d3",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# 1\n",
+    "\n",
+    "def initialize_inventory(products):\n",
+    "    inventory = {}\n",
+    "    for product in products:\n",
+    "        quantity = int(input(f\"Enter a quantity of {product}: \"))\n",
+    "        inventory[product] = quantity\n",
+    "\n",
+    "    return inventory\n",
+    "\n",
+    "\n",
+    "    "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 46,
+   "id": "02abdad2",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#2\n",
+    "\n",
+    "def get_customer_orders():\n",
+    "    customer_orders = set()\n",
+    "\n",
+    "    while True:\n",
+    "        order = input(\"Enter a product to order or 'exit' to finish: \")\n",
+    "        if order == \"exit\":\n",
+    "            break\n",
+    "        else:\n",
+    "            customer_orders.add(order)\n",
+    "    return customer_orders\n",
+    "\n",
+    "\n",
+    "    "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 47,
+   "id": "45edb707",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# 3\n",
+    "\n",
+    "def update_inventory(customer_orders, inventory):\n",
+    "    for order in customer_orders:\n",
+    "        if order in inventory and inventory[order] > 0:\n",
+    "            inventory[order] -=1\n",
+    "\n",
+    "    return inventory"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 48,
+   "id": "da97a55d",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#4\n",
+    "\n",
+    "def calculate_order_statistics (customer_orders, products):\n",
+    "   total_products_ordered = len(customer_orders)\n",
+    "   percentage = (total_products_ordered / len(products)) * 100\n",
+    "\n",
+    "   return total_products_ordered, percentage\n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 49,
+   "id": "2b423687",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# 5\n",
+    "\n",
+    "def print_order_statistics (order_statistics):\n",
+    "    total_products_ordered, percentage = order_statistics\n",
+    "\n",
+    "    print(f\"Total products ordered: {total_products_ordered}\")\n",
+    "    print(f\"Percentage of products ordered: {percentage:.2f}\")\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 50,
+   "id": "8c59886d",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#6 \n",
+    "\n",
+    "def print_updated_inventory(inventory):\n",
+    "    print(\"Updated Inventory:\")\n",
+    "    for product, quantity in inventory.items():\n",
+    "        print(f\"{product}: {quantity}\") \n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 51,
+   "id": "3f5567cd",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Total products ordered: 3\n",
+      "Percentage of products ordered: 60.00\n",
+      "Updated Inventory:\n",
+      "t-shirt: 5\n",
+      "mug: 5\n",
+      "hat: 3\n",
+      "book: 2\n",
+      "keychain: 21\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 7\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_order_statistics (order_statistics) \n",
+    "print_updated_inventory (updated_inventory)\n",
+    "\n"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "base",
    "language": "python",
    "name": "python3"
   },
@@ -61,7 +219,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.13.5"
   }
  },
  "nbformat": 4,