In January, each of 60 people purchased a 800 washing machine. In February, 10% fewer customers purchased the same washing machine that had increased in price by 20% What was the change in sales from January to February? Select the correct choice below and fill in the answer box within your choice. A. There is no change in the sales from January to February. B. The change in sales from January to February is a square increase. C. The change in sales from January to February is a square decrease

To solve this problem, we need to calculate the total sales for each month and then find the change in sales from January to February.<br /><br />Given information:<br />- In January, each of 60 people purchased a $800 washing machine.<br />- In February, 10% fewer customers purchased the same washing machine that had increased in price by 20%.<br /><br />Step 1: Calculate the total sales for January.<br />Total sales in January = Number of customers × Price of washing machine<br />Total sales in January = 60 × $800 = $48,000<br /><br />Step 2: Calculate the number of customers in February.<br />Number of customers in February = 60 × (1 - 10%) = 60 × 0.9 = 54<br /><br />Step 3: Calculate the price of the washing machine in February.<br />Price of washing machine in February = $800 × (1 + 20%) = $800 × 1.2 = $960<br /><br />Step 4: Calculate the total sales for February.<br />Total sales in February = Number of customers × Price of washing machine<br />Total sales in February = 54 × $960 = $51,840<br /><br />Step 5: Calculate the change in sales from January to February.<br />Change in sales = Total sales in February - Total sales in January<br />Change in sales = $51,840 - $48,000 = $3,840<br /><br />Therefore, the change in sales from January to February is a $3,840 increase.<br /><br />The correct choice is:<br />B. The change in sales from January to February is a $\$3,840$ increase.