When the interest rate in the economy was 10%, the price of a bond with no expiration date that pays a fixed annual interest of $500 was $5,000. if the interest rate in the economy falls to 6%, the price of this bond will be about?

Six years ago, an 80-kw diesel electric set cost $160,000. the cost index for this class of equipment six years ago was 187 and is now 194. the cost-capacity factor is 0.6. the plant engineering staff is considering a 120-kw unit of the same general design to power a small isolated plant. assume we want to add a precompressor, which (when isolated and estimated separately) currently costs $13291. determine the total cost of the 120-kw unit. (hint: skip $ and comma symbols)