Please help me I don’t know the answer

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?

Ian is in training for a national hot dog eating contest on the 4th of july. on his first day of training, he eats 4 hot dogs. each day, he plans to eat 110% of the number of hot dogs he ate the previous day. write an explicit formula that could be used to find the number of hot dogs ian will eat on any particular day.

Reagan lives five miles farther from school than vanessa lives. write an expression to describe how far reagan lives from school