of a United States Savings bond can be purchased for $65 and has a maturity value at the end of 15 years of $170, what is the annual rate of return on the bond? Select one 0.52% b. 8.78% C. 5.96 520 530% suppose that company has a total sales of $520,000, and a not income after takes of $14. BOD. What is the operating profit margin if you knew that the income tax rate is 30% and the interest rate is 18 Soloco 0.38.40% 1) 3055 157 55