A financier plans to invest up to $500,000 in two projects. Project A yields a return of 10% on the investment where Project B yields a return of 15% on the investment. Because the invesemtns in project B is risker than the invesments in project A, the finaniced has decided that the invesment in projcect B should not exceed 40% of the total investment. How much should she invest in each project in order to maximize the retirn on her invesment? what is the maximum return?​