You are going to invest in a stock mutual fund with a 6 percent front-end load and a 1.39 percent expense ratio. You also can invest in a money market mutual fund with a 4.5 percent return and an expense ratio of 0.1 percent. If you plan to keep your investment for 2 years, what annual return must the stock mutual fund earn to exceed an investment in the money market fund? What if your investment horizon is 7 years? (Round your answer to 2 decimal places. Omit the "%" sign in your response.)