A deli sells 480 sandwiches per day at a price of $6 each. (A) A market survey shows that for every $0.10 reduction in the price, 20 more sandwiches will be sold. How much should the deli charge in order to maximize revenue? The deli should charge $ 4 for a sandwich to maximize revenue (Round to the nearest cent as needed ) (B) A different market survey shows that for every $0 20 reduction in the original $6 price, 5 more sandwiches will be sold, Now how much should the deli charge in order to maximize revenue? Now the deli should charge $ 7 8 for a sandwich to maximize revenue (Round to the nearest cent as needed )