Bryn invested $2700 into an account that grows at a 4% annual interest rate. If she made no additional deposits of withdrawals on the account, which of the following equations could be used to find the amount of money in Bryn's account after 7 years?

Three students, javier, sam, and corrine, participated in a fundraiser where people donated a certain amount of money per lap that the student ran. each student also had some initial donations that were collected before the run. the equations that represent each student's total donation, y, based on the number of laps ran, x, is shown below. match each equation with the correct rate of change for that student.