Andrews co. can purchase 20,000 units of part xyz from a supplier for $18 per part. andrews' per unit manufacturing costs for 20,000 units is: cost per unit total variable manufacturing cost $12 $240,000 supervisor salary $3 $60,000 depreciation $1 $20,000 allocated fixed overhead $7 $140,000 if the part is purchased, the supervisor position would be eliminated. the special equipment has no other use and no salvage value. total allocated fixed overhead would be unaffected by the decision. should the company buy the part or continue to make it? continue to make — $60,000 advantage. buy — $80,000 advantage. continue to make — $40,000 advantage. buy — $100,000 advantage.

When interest is compounded continuously, the amount of money increases at a rate proportional to the amount s present at time t, that is, ds/dt = rs, where r is the annual rate of interest. (a) find the amount of money accrued at the end of 3 years when $4000 is deposited in a savings account drawing 5 3 4 % annual interest compounded continuously. (round your answer to the nearest cent.) $ (b) in how many years will the initial sum deposited have doubled? (round your answer to the nearest year.) years (c) use a calculator to compare the amount obtained in part (a) with the amount s = 4000 1 + 1 4 (0.0575) 3(4) that is accrued when interest is compounded quarterly. (round your answer to the nearest cent.) s = $

Suppose the number of equipment sales and service contracts that a store sold during the last six (6) months for treadmills and exercise bikes was as follows: treadmill exercise bike total sold 185 123 service contracts 67 55 the store can only sell a service contract on a new piece of equipment. of the 185 treadmills sold, 67 included a service contract and 118 did not.

Why is efficiency an important economic goal?