So for this, we will be applying the <u>zero product property</u>, which is <u>"if a x b = 0, then either a = 0 or b = 0 or both a and b = 0"</u>. In this case, a = x + 13 and b = x - 7. Solve them separately:

<u>Your answer is x = -13 and 7.</u>
Answer:
AW YEAHHHHHHHHHHHHHHHHHHHHHHHHHHH
Step-by-step explanation:
U have to subtract the new number by the discount and get your and wet
According to the advertising, Mudrik expects his gas mileage
to increase by
(0.15) x (22) = 3.3 mpg ,
to (22) + (3.3) = 25.3 mpg .
But to answer the question exactly as you asked it,
I would predict that the change in the gas mileage
after installing the device will be insignificant, and
that the change is equally likely to be either an
increase or a decrease.
If such a device existed, it would already be standard
equipment on every car that's sold.