Charla would like to save $15,000 for a down payment for her first house. she currently has $10,000.

Charla would like to save $15,000 for a down payment for her first house. she currently has $10,000. At what interest rate, compunded annually, would she need to invest her money in order to have the required $15,000 in 5 years? with the formula y= A(1+r/n)^nx