need help answeing project B

X-treme Vitamin Company is considering two investments, both of which cost $46,000. The cash flows are as follows: Use Appendix B for an approximate answer but calculate your final answer using the formula and financial calculator methods. a-1. Calculate the payback period for Project A and Project B. Note: Round your answers to 2 decimal places. b-1. Calculate the net present value for Project A and Project B. Assume a cost of capital of 8 percent. Note: Do not round intermediate calculations and round your final answers to 2 decimal places. Answer is not complete