Please help me with these mcqs-

20.An entrepreneur gathers the following information to make a decision on whether to stay open for business or to shut down permanently: Future operating revenues = $18 million Future operating costs = $14 million Sunk costs = $8 million The entrepreneur should:

continue to operate to help pay off the sunk costs.

shut down because the operating revenues are insufficient to cover the operating costs and sunk costs.

shut down because the sunk costs are greater than zero.

continue to operate because the operating revenues exceed the operating costs.

21.A movie theater faces the following hourly inverse demand curves: Seniors: P_s = 12 - 0.5Q Adults: P_a = 19 - Q The marginal cost is constant at $1. If the movie theater must charge everyone the same price, the profit maximizing ticket price is $____.

10

7.67

8.50

6.50

22.Bubba Golf, a manufacturer of golf clubs, can sell 3 drivers at $600 each. To sell 4 drivers, Bubba Golf must lower the price to $580 each. The marginal revenue of the fourth club is:

$20.

$520.

$580.

$60.