If it takes a supplier 25 days to deliver an order once it has been placed and the standard deviation of daily demand is 20, which of the following is the standard deviation of usage during lead time?
a. 50
b. 100
c. 400
d. 1,000
e. 1,600

Aborrower takes out a 30-year adjustable rate mortgage loan for $200,000 with monthly payments. the first two years of the loan have a "teaser" rate of 4%, after that, the rate can reset with a 5% annual payment cap. on the reset date, the composite rate is 6%. what would the year 3 monthly payment be?

Arnold rossiter is a 40-year-old employee of the barrington company who will retire at age 60 and expects to live to age 75. the firm has promised a retirement income of $20,000 at the end of each year following retirement until death. the firm's pension fund is expected to earn 7 percent annually on its assets and the firm uses 7% to discount pension benefits. what is barrington's annual pension contribution to the nearest dollar for mr. rossiter? (assume certainty and end-of-year cash flows.)

Wang distributors has an annual demand for an airport metal detector of 1 comma 350 units. the cost of a typical detector to wang is $400. carrying cost is estimated to be 19% of the unit cost, and the ordering cost is $24 per order. if ping wang, the owner, orders in quantities of 300 or more, he can get a 10% discount on the cost of the detectors. should wang take the quantity discount? \