help please, i need help on this question

Question

wendy deposited $60 in a savings account earning 10% interest, compounded annually. To the nearest cent, how much interest will she earn in 3 years?

Answer 1

is the answer $79.86?

Answer 2

or is it 19.86

Answer 3

60(1+.10)^3 = 79.86, but that is how much will be in the account.

As you note, only $19.86 of that is the interest, which answers the question asked.