Intro A riskless security costs $3,537 and will pay $3,700 in one year. Part 1 Attempt 1/10 for 1 pts. What is the risk-free interest rate in the absence of any arbitrage opportunity? 4+ decimals Submit Intro Your favorite aunt has promised to help you with your school expenses by giving you $1,000 in one year. The appropriate interest rate is 7%. Part 1 BAttempt 1/10 for 1 pts. You wonder how much your aunt's promise is worth. What is the value in current dollar terms of the $1,000 promised for next year? 0+ decimals Submit Intro You invest $3,000 in a savings account that pays 2.1% interest per year. Part 1 How much money will you have in one year? 0+ decimals Submit 3 Attempt 1/10 for 1 pts