18000 Hz refers to the frequency of a sound wave, not its volume. The loudness of a sound is typically measured in decibels (dB), not in hertz. Therefore, it is not accurate to say that 18000 Hz is loud. The perception of loudness depends on the amplitude of the sound wave, which is measured in decibels. **

To divide 18000 by 5, you can simply use long division. Start by dividing 18 by 5, which equals 3 with a remainder of 3. Then bring down the next digit, 0, to make 30. 30 divided by 5 equals 6 with no remainder. So, the final answer is 3600. **

Online commerce refers to the buying and selling of goods and services over the internet, while retail commerce refers to the traditional brick-and-mortar stores where customers can physically visit and make purchases. Online commerce offers the convenience of shopping from anywhere at any time, while retail commerce provides the opportunity for customers to see, touch, and try products before making a purchase. Online commerce often involves lower overhead costs and can reach a wider audience, while retail commerce provides a more personalized and immediate shopping experience. **

The kWh consumption can increase from 4500 to 18000 due to various factors such as an increase in the number of electrical appliances being used, longer operating hours of appliances, inefficient appliances consuming more energy, or the addition of new energy-intensive equipment. Another reason could be a change in lifestyle or habits that require more energy usage. It is essential to monitor and manage energy consumption to ensure efficiency and reduce unnecessary usage. **

A white blood cell count of 18000 indicates that there is an elevated level of white blood cells in the body. This could be a sign of an infection, inflammation, or a response to stress or trauma. It is important to consult a healthcare professional for further evaluation and diagnosis to determine the underlying cause of the elevated white blood cell count. **

Online shopping has certainly had an impact on retail stores, as it has changed consumer behavior and shopping habits. Many traditional brick-and-mortar stores have struggled to compete with the convenience and variety offered by online shopping. However, it's important to note that online shopping has also created new opportunities for retailers to reach customers and expand their businesses. While some retail stores have closed due to the rise of online shopping, others have adapted by offering online options and enhancing their in-store experiences to remain competitive. Overall, online shopping has transformed the retail landscape, but it hasn't necessarily destroyed retail stores entirely. **

An online shop for e-commerce is a website or platform where businesses and individuals can sell their products or services to customers over the internet. It provides a virtual storefront where customers can browse, select, and purchase items, and often includes features such as secure payment processing, order tracking, and customer support. Online shops for e-commerce can range from small, independent businesses to large, multinational retailers, and they have become increasingly popular due to the convenience and accessibility they offer to both sellers and buyers. **

A retail merchant in e-commerce is responsible for a variety of tasks to ensure the success of their online store. These tasks include sourcing and purchasing products to sell, managing inventory levels, setting prices, creating product listings, and optimizing product descriptions and images to attract customers. Additionally, they are responsible for marketing their store through various channels, providing customer service, processing orders, and managing shipping and returns. Overall, a retail merchant in e-commerce must oversee all aspects of their online store to drive sales and provide a positive customer experience. **