A lawn moving service charges customers a flat fee of $15 plus $55 per hour for their services. The expression 55x + 15 is used to calculate the total charge.
Which part of the expression represents the rate per hour spent mowing the lawn?
a. 500
b. 5000
C. 5500
d. 36700

Carla is saving money for a trip this summer. she already has some money in her savings account and will add the same amount to her account each week. at the end of 2? weeks, carla has? $130. at the end of 8? weeks, she has? $280. write a linear function in the form y=mx+b to represent the amount of money m that carla has saved after w weeks.