Hi, can I have help answering this question please.

(2)The firm has purchased a new piece of equipment at an initial cost of $ 14,000 and it has no salvage value. The repair costs are covered by the warranty in the first year. In the second year, maintenance costs will $ 600 and increase on an arithmetic gradient in subsequent years. Operating expenses will be $ 350 the first year and increase on $ 450 arithmetic gradient in the followingyears..The firm's discount rate is 12%. Determine the minimum equivalent uniform annual cost for this machine and its economic life (i.e., when it should be replaced by a new machine).