Afirm in a competitive industry has a total cost function of tc = 0.2 q2 – 5q + 30, whosecorresponding marginal cost curve is mc=0.4q – 5. if the firm faces a price of 6,

a)what quantity should it sell? (10 points)

b)what profit does the firm make at this price? (10 points)

c)should the firm shut down? (10 points)

Amachine purchased three years ago for $720,000 has a current book value using straight-line depreciation of $400,000: its operating expenses are $60,000 per year. a replacement machine would cost $480,000, have a useful life of nine years, and would require $26,000 per year in operating expenses. it has an expected salvage value of $130,000 after nine years. the current disposal value of the old machine is $170,000: if it is kept 9 more years, its residual value would be $20,000. calculate the total costs in keeping the old machine and purchase a new machine. should the old machine be replaced?

Which career pathways require workers to train at special academies? a.emts and emergency dispatchers b.crossing guards and lifeguards c.police officers and firefighters d.lawyers and judges

Which of the following emails should he save in this folder instead of deleting or moving it to another folder