Formulate a system of equations for the situation below and solve. mr. and mrs. garcia have a total of $100,000 to be invested in stocks, bonds, and a money market account. the stocks have a rate of return of 15%/year, while the bonds and the money market account pay 10%/year and 5%/year, respectively. the garcias have stipulated that the amount invested in the money market account should be equal to the sum of 20% of the amount invested in stocks and 10% of the amount invested in bonds. how should the garcias allocate their resources if they require an annual income of $12,500 from their investments?