Question: Investment. After her finite mathematics course, Abbie has decided to jump into the market (smart lady) . There are three types of investments: a high-risk venture into oil leases with a potential return of 15%, a medium-risk investment in stocks with a 9% return, and a relatively safe bond investment with a 5% return. She has $50,000 to invest. Because of the risk, she will limit his investment in oil leases and stocks to 30% and her investment in oil leases and bonds to 50%. How much should she invest in each to maximize his return, assuming investment returns are as expected? (Show all your work please)