Four basic cost curves​

ernst's electrical has a bond issue outstanding with ten years to maturity. these bonds have a $1,000 face value, a 5 percent coupon, and pay interest semiminusannually. the bonds are currently quoted at 96 percent of face value. what is ernst's pretax cost of debt?

Problem page a medical equipment industry manufactures x-ray machines. the unit cost c (the cost in dollars to make each x-ray machine) depends on the number of machines made. if x machines are made, then the unit cost is given by the function =cx+−0.3x2126x31,935 . how many machines must be made to minimize the unit cost?

Complete electronics inc. sells a point-of-sale computer with a two-year service contract. complete collects $ 2 comma 500 cash for the selling price of the computer and $ 576 for the two-year service contract. how is revenue recognized?