Marielle was in an accident. Her car left 2 skid marks of 48 and 52 feet. Her brakes
were operating at 80% efficiency at the
time of the accident and the drag factor is
.75.
What was the speed Marielle was
traveling when she started to brake?

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.