using constant worth dollars

A university's college of engineering would like to determine how much it will cost to keep its computing equipment current. In today's dollars, the college estimates that it will cost $160.000 to replace old computing equipment. Due to decreasing prices on computers, it estimates that this cost will decrease each of the following years by 7%. What would the present worth of computing updates for years 1-5 be assuming a required 13% real return on its investments? Click here to access the TVM Factor Table calculator, $ Carry all interim calculations to 5 decimal places and then round your final answer to a whole number. The tolerance is $10