Nancy Jackson deposited $3,200 today in an account paying 7 percent interest annually. (If you solve this problem with algebra round intermediate calculations to 6 decimal places, in all cases round your final answer to the nearest penny.) What would be the simple interest earned on this investment in 5 years? Simple interest on investment $ With annual compounding, how much interest-on-interest would Nancy earn in 5 years? Interest-on-interest $