I need help with parts a and b please and thank you

a) How many years will it take for $ 1000 to reach a balance of $1500 if the rate is 10% simple interest? What if the same principal with the same rate is compounded annually, how long will it take for the principal to reach $1500? b) Between the two choices below, what would be the best preference and why? Choice 1: Investing $2000 in a mutual fund that earns 5.5% compounded monthly for 2 years choice 2: A bond that earns simple interest at 11% for 1 year