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

no association

step-by-step explanation:

if you have eyes and you can use them efficiently you can see that it just looks like random dots like do a line of best fit and like they're so spread out it's such a weak association you might as well consider it nonexistent

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!