Part a: rhett made $250 washing cars with his mobile car wash company. he charges $70 per car and earned $50 in tips. write an equation to represent this situation. (4 points) part b: scarlett made a profit of $250.00 with her mobile car wash company. she charged $75.00 per car wash and received $35.00 in tips, but also had to pay $5.00 in cleaning supplies per car wash. write an equation to represent this situation. (4 points) part c: explain how the equations from part a and part b differ. (2 points)