Plaese me fast this is worth 20 points

When you answer this can you explain

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?

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