Acar rental costs $50 for the first day. additional days cost $35 per day, unless the car is rented for 7 days or more, in which case there is a 10% discount on the daily rate.

identify the expression which represents the cost of renting a car if the car has been rented for more than a week.
a) 45 + 35x
b) 45 + 31.5x
c) 50 + 35x
d) 50 + 31.5x

  D) 50 + 31.5x

Step-by-step explanation:

The expression for less than 7 days is 50 + 35x.

7 or more days has a 10% discount on the daily rate (35):

35 - 35(0.10)   =   35 - 3.5  =   31.5

So, the new expression is: 50 + 31.5x

the one that has a slope of 1/2 and is positive.

step-by-step explanation: 2 buckets 1 trip ; 4 buckets 2 trips and so on.