Preblem 13 aninterest rate of 7% per year. Answer: Equation Calculate the present worth (ear o) of a lease that requires a payment of that requires a payment of S20,000 now and amounts increasing by 7% per year through year 10. Use CFD Problem 14. The ann ual worth in years 4 through 8 ofan amount of moneyxthat will be received 2 years from now is S4000 Alaninerest rate of10% per year, the value of x is closest to Answer: Equation: CFD Problem 15 A compary that manufactures hydrogen sulfide monitors is planning to make deposits such that each one is 5% larger than the preceding one. How large must the first deposit be (at the end of year I) if the deposits extend theough year 10 and the fourth deposit is $12502 Use an intcerest rate of 10%per year. Answer: Equation: CFD Probleat 16 The maintenance os fr a certain machine is S1000 per year for the first 5 years per year S2000 year fr he ned 5 years. At an inte est rate of 10% the annual worth in years l through 10 of the maintenance cost is closest to CFD: Answer: Equation: Problems 17, 10% per year will be closest to Answer: If a sam of $5000 is deposited mow, $7000 wo years from now, and $2000 per year in years 6 thwough 10, the amount in year 10 atl an interest rate of CFD