Carla has $90. She makes $6 per day walking a neighbor's dog for half an hour, but she spends $7.50 per day on lunch. What is the fewest number of days for which Carla will have less than $30? Solve this inequality to find out. 90 + 6x - 7.5x < 30 (hint: combine like terms first) A- 30
B- 41
C- 60
D- 90

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.