John has two hours of free time this evening. he ranked his alternatives, first go to a concert, second go to a movie, third study for an economics exam, and fourth answer his e-mail. what is the opportunity cost of attending the concert for john?

a. attending a movie
b. studying for an economics exam
c. answering his e-mail
d. attending a movie, studying for an economics exam, and answering his e-mail

Aproject currently generates sales of $14 million, variable costs equal 50% of sales, and fixed costs are $2.8 million. the firm’s tax rate is 40%. assume all sales and expenses are cash items. (a). what are the effects on cash flow, if sales increase from $14 million to $15.4 million? (input the amount as positive value. enter your answer in dollars not in (b) what are the effects on cash flow, if variable costs increase to 60% of sales? (input the amount as positive value. enter your answers in dollars not in millions). cash flow (increase or decrease) by $