How long did it take for an investment of $21,250 to grow to at least $24,000 at 2.25% compounded quarterly?

Hewlett Plastics Inc. received a loan of $52,500.00 at 4.25% compounded quarterly to purchase machinery for its factory. Calculate the time period of the loan if the total amount of interest paid was $22,700.47.

How long will it take for an investment to at least double its original amount if it is growing at 5.50% compounded quarterly?