John decided to start saving for college. he deposited $500 into an account which earns 4% simple annual interest. at the end of each year, he will add $250 to this account. how much will he have in his account after the end of three years?

Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?