please help me correct the following wrong answers. thanks

A company is considering a $159,000 investment in machinery with the following net cash flows. The company requires a 10% return on its investments. (PV of $1. FV of \$1. PVA of $1, and FVA of $1 ) (Use appropriate factor(s) from the tables provided.) (a) Compute the net present value of this investment. (b) Should the machinery be purchased? (x) Answer is complete but not entirely correct. Complete this question by entering your answers in the tabs below. Compute the net present value of this investment. (Round your present value factor to 4 decimals. Round your final answers to the nearest whole dollar.)