will leave a great rating :)

6. Suppose you accumulate $300,000 after investing $1,000 monthly for 10 years. What interest rate/return did you earn? State your answer as an APR $300,000.00=$1,000.00[(1+r)1201]]/rr=0.01412=16.41%APR 7. Suppose you accumulate $30,000 after investing $800 quarterly for 6 years. What interest rate/return did you earn? State your answer as an APR 8. Suppose you accumulate $100,000 after investing $5,700 semi-annually for 4 years. What interest rate/return did you eam? State your answer as an APR 9. Suppose you accumulate $7,000 after investing $20 weekly for 5 years. What interest rate/return did you earn? State your answer as an APR