Engineering ecconomy

dont answer it

4.43 Equipment maintenance costs for manufacturing explosion-proof pressure switches are projected to be $100,000 in year 1 and increase by 4% each year through year 5. a) What is the present worth of the maintenance costs at an interest rate of 10% per year, compounded quarterly? b) If the interest rate for years 4 and 5 are 10%/year compounded monthly, how much will it change the answer? 1.19 4.43 Equipment maintenance costs for manufacturing explosion-proof pressure switches are projected to be $100,000 in year 1 and increase by 4% each year through year 5. a) What is the present worth of the maintenance costs at an interest rate of 10% per year, compounded quarterly? b) If the interest rate for years 4 and 5 are 10%/year compounded monthly, how much will it change the answer? 1.19