49. Samantha Sweigart invested $12,600 in the MFS Utilities “B” Mutual Fund. The net asset value of the fund at the time of purchase was $18.00 and was back-loaded with a
loading rate of 3.0%. When she sold her fund shares, the net asset value was $20.25.
(a) How many shares did Samantha buy? (b) Considering the back-end load, how
much profit (loss) did Samantha make on her investment?

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.