Question 4 1 pts Determine Rate for Loan. A friend promises to pay you $700 two years from now if you loan $500 today. What annual rate is your friend offering you? 6.5% 8.5% 18.3% 9.8% 12.3% Question 5 1 pts Find Rate on Lump Sum. Suppose you're offered an investment opportunity that guarantees your investment will double in 7 years by annual compounding for any amount you invest. What is the annual rate of return being promised? (Hint: some values are given in words, not dollars) 10.4% 20.0% 40.0% 18.75% 100%