The figure shows the supply curve of coffee makers. What is the change in the quantity of coffee makers supplied when the price of a coffee maker falls from 60 to 40 while all other influences on selling plans are unchanged? The quantity of coffee makers supplied __ A. increases by an unknown amount B. decreases from 18 million to 12 million C. increases from 12 million to 18 million D. decreases by an unknown amount

To determine the change in the quantity of coffee makers supplied when the price falls from 40, we need to look at the supply curve.The supply curve shows the relationship between the price of a good and the quantity supplied. In this case, the supply curve is a straight line with a positive slope, indicating that as the price increases, the quantity supplied also increases.When the price is 40, the quantity supplied decreases to 12 million.Therefore, the change in the quantity of coffee makers supplied when the price falls from 40 is a decrease from 18 million to 12 million.The correct answer is B. decreases from 18 million to 12 million.