please help with C

Elossom Compary is considering three long-term capital investment proposals. Eachimvestment his a usefullife of b yarars. Rubuam data on each project are as follows. Depreciation is computed by the straight-line method with no salvage value. The company's cost of copital is 15\%. (Aswume that cash flows occur evenly throughout the year.) Your answer is correct. Compute the cash payback period for each project. (Round answers to 2 decimal places, eg. 10.50.) Project Bono years Project Edge years Project Clayton years Compute the net present value for each project. (Round answers to 0 decimal ploces, e\&. 125. If the net present value is negotive, use either a negative sign preceding the number eg -45 or porentheses eg (45). For calculation purposes, use 5 decimal places as displayed in the foctor table provided.) (c) Compute the annual rate of return for each project. (Hint: Use average annual net income in your computation). (Round answers to 2 decimal places, es, 10.50%