As a budget director of the Mason City Park Department, you need to purchase new snow

plowing equipment before the next winter season. You sent out a request for proposal $($RFP$)$ and

three companies gave you information on their plows $$ including purchase costs and annual

operating maintenance expenses. Fast Corporation$$s proposal costs $$400,000,$ and $$100,000$

annually for $5$ years; Furious Corporation$$s proposal costs $$500,000,$ and $$75,000$ annually also

for $5$ years; and Diesel Company$$s proposal costs $$300,000$ and $$125,000$ annually for $5$ years.

The town uses a cost of capital of $6\%.$ Which company$$s proposal should you accept? Justify

your answer