On january 1, 2019, a company issued $400,000 of 10-year, 12% bonds. the interest is payable semiannually on june 30 and december 31. the issue price was $413,153 based on a 10% market interest rate. the effective-interest method of amortization is used. the interest expense for the six-month period ending december 31, 2019 is closest to:

M. cotteleer electronics supplies microcomputer circuitry to a company that incorporates microprocessors into refrigerators and other home appliances. one of the components has an annual demand of 235 units, and this is constant throughout the year. carrying cost is estimated to be $1.25 per unit per year, and the ordering (setup) cost is $21 per order. a) to minimize cost, how many units should be ordered each time an order is placed? b) how many orders per year are needed with the optimal policy? c) what is the average inventory if costs are minimized? d) suppose that the ordering cost is not $21, and cotteleer has been ordering 125 units each time an order is placed. for this order policy (of q = 125) to be optimal, determine what the ordering cost would have to be.