9. [-/0.45 Points] DETAILS TANAPCALC10 5.3.016. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Find the interest rate needed for an investment of $6,000 to grow to an amount of $9,000 in 3 years if interest is compounded quarterly. (Round your answer to the nearest hundredth of a percentage point.) % Need Help? Read It Submit Answer 10. [-/0.45 Points] DETAILS TANAPCALC10 5.3.022. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER How long will it take $20,000 to grow to $24,000 if the investment earns interest at the rate of 6%/year compounded monthly? (Round your answer to one decimal place.) yr Need Help? Read It Submit Answer 11. [-/0.5 Points] DETAILS TANAPCALC10 5.3.023. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER How long (in years) will it take $4,000 to grow to $6,000 if the investment earns interest at the rate of 3%/year compounded monthly? (Round your answer to one decimal place.) yr Need Help? Read It Watch It