Please answer the attached questions using Excel and Excel solver.

Spencer Enterprises is attempting to choose among a series of new investment alternatives. The potential investment alternatives, the net present value of the future stream of returns, the capital requirements, and the available capital funds over the next three years are summarized as follows: Max 4,000x1 + 6,000x2 + 10,500x3 + 4,000x4 + 8,000x5 + 3,000x6 s.t. 3,000x1 + 2,500x2 + 6,000x3 + 2,000x4 + 5,000x5 + 1,000x6