s At an effective annual interest rate of 20 percent, how many years wil it take a given amount to triple in value? (Round to the closest year.) 10 presently have $6,000 invested at a rate of 15 percent, how many will it take for your investment to triple? (Round up to obtain a A e number of years if nocessary) Suppose the present value of a 5-year ordinary annuity is $1,350. If the discount rate is 9 percent, what must be the annual cash flow? S312.85 $279.03 $347.07 $378.9 In 1981 the average tuition for one year at a certain state school was 8 $1,800. Thirty years later, in 2011, the average cost was $13,700. What was the growth rate in tuition over the 30-year period? From the following data for David ProElecticals, calculate the quick ratio Cash 68, 500 130, 000 213,000 Accounts Receivable Inventory Prepaid Assets Total Current Assets 436,500 9 Less: 275.000 161,500 Current Li Working Capital 1.6 0.7 0.3 1.5