need help please

7. You run a small store on Canal Street in Manhattan. Sunglasses are among the most important items that you sell. The following function rule can be used to calculate expected sales of your sunglasses in one month: 1=-20x+ 240 where x represents the price (in dollars) that you charge for a Canal Street, Manhattan pair of "designer" sunglasses, and y represents the number of pairs of sunglasses that you are likely to sell in a month at that price. a. Complete the following table: 0 2 3 4 5 Original material under copyright, 2012 Math Start Core Math Curriculum - Late Spring /Summer 2023 129 b. Interpret one of the solutions in your completed table using the context of this problem. C . What is the rate of change of this function? How can it be interpreted in the context