Please use formulas instead of excel to solve this.

Sara Inc. is considering purchasing a new, energy-efficient grill. The grill will cost $20,000 and will be depreciated straight-line over 3 years to a salvage value of $5,000. The grill will have no effect on revenues but will save Sara's $10,000 in energy expenses. The tax rate is 35%. What are the operating cash flows (OCFs) in yearl to 3? a. b. $10,000 $12,450 $14,850 $8,250 c. d