In your job as an agent, you receive a monthly salary of $500 plus 3% commission on all of your listings that sell and 2.5% of all of your sales. None of the listings you took sold last month, but you received $7,350 in salary and commission. What was the value of the property you sold

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.