Oracle corporation reported the following earnings per share information in its 2016 form 10-k. the company has only one class of stock outstanding. ($ in millions) net income $8,901 dividends to common shareholders $2,541 weighted average common shares outstanding 4,221 weighted average dilutive shares 4,305 basic and diluted earnings per share were, respectively:

Until recently, hamburgers at the city sports arena cost $4.70 each. the food concessionaire sold an average of 13 comma 000 hamburgers on game night. when the price was raised to $5.40, hamburger sales dropped off to an average of 6 comma 000 per night. (a) assuming a linear demand curve, find the price of a hamburger that will maximize the nightly hamburger revenue. (b) if the concessionaire had fixed costs of $1 comma 500 per night and the variable cost is $0.60 per hamburger, find the price of a hamburger that will maximize the nightly hamburger profit.