1. Daiyu invests $4000 in a simple interest savings account that earns $1100 interest in 66 months. What interest rate does Daiyu's account have? 2. Mohammed invests his birthday money in a savings account that has 4.8% interest, compounded monthly. After 4 years, he has $1650.98. a) How much did he initially invest? b) How much interest did his investment make? 3. Lucia withdraws her investment after 12 years. She initially invested $5000 in the account that compounds interest weekly. She has $9385.07 when she takes her money out. What was the interest rate for her investment