Jake is comparing the prices of two laundry service companies. Company A charges $20 per load and an additional $8 as service charges. Company B charges $24 per load and an additional $4 as service charges.
Part A: Write an equation to represent each company's total charges for cleaning a certain number of loads of laundry. For both equations (one for Company A and one for Company B), define the variable used. (4 points)
Part B: Which company would charge less for 5 loads of laundry? Justify your answer. (3 points)
Part C: How much money is saved by using the services of Company A instead of Company B to clean 9 loads of laundry? (3 points)