After 10 months of investing $520 in a high-growth fund, Mitchell's investment had a maturity amount of $568 in the fund. He also had the option to invest the same amount in his friend's business, which offered 1.50% p.m. more than the high-growth fund. a. What monthly rate of simple interest was offered by the high-growth fund? %" Round to two decimal places b. What would be the maturity amount after 10 months if he invested in his friend's business? Round to the nearest cent G