Until recently. hamburgers at the city sports arena cost $3.30 each. The food concessionaire sold an average of 8,500 hamburgers on game night. When the price was raised to $3.70. hamburger sales dropped off to an average of 6.500 per night. [a}Assuming a linear demand curve, find the price of a hamburger that will maximize the nightly hamburger revenue. [b] lfthe concessionaire had fixed costs of $2.500 per night and the variable cost is $0.60 per hamburger, find the price ofa hamburger that will maximize the nightly hamburger profit. [a}Assuming a linear demand curve, find the price of a hamburger that will maximize the nightly hamburger revenue. The hamburger price that will maximize the nightly hamburger revenue is $D. [Round to the nearest cent as needed.)