The following estimates are used in Sections A and B. The MARR is 12% per year.

A. The relation that correctly calculates the present worth of alternative 2 when comparing it to alternative 1 is?

B. The number of life cycles for each alternative when performing a present worth evaluation based on the LCM for equal service is?

First cost, Annual cost, s per year Salvage value, s Life, years Alternative 1 Alternative 2 40,000 65,000 20,000 15.000 25,000 10,000