For this case we have that the original price of the book is given by:
$ 19.75
The customer has a coupon to save part of the price of the book.
Therefore, the customer will pay

Where,
x: value of the customer coupon.
We know that the customer has a coupon that has a value of $ 4.50.
Substituting values we have:

Answer:
she will pay for the book 15.25 $
Answer:
A, D, E
Step-by-step explanation:
x and y should add up to 120 bc 180- 60= 120 so thats the only value we're missing
This ordered pair lands on the the Y axis
Answer:
r = - 2
Step-by-step explanation:
Calculate the slope m using the slope formula and equate to 
m = 
with (x₁, y₁ ) = (- 9, - 3) and (x₂, y₂ ) = (- 2, r)
m =
, that is
=
( cross- multiply )
7(r + 3) = 7 ( divide both sides by 7 )
r + 3 = 1 ( subtract 3 from both sides )
r = - 2
Answer:
292.32
Step-by-step explanation:
16% = 0.16
348 × 0.16 = 55.68
348 - 55.68 = 292.32