Jonas bought 3 books. each book was the same price. he also used a coupon that takes $20 off the total cost. what expression can be used to represent the total purchase?

let x = the price of a book

 so you would have

 total = 3x-20

answer: its c because when it has a magnet next to it it will move away from the mixture. hope this

step-by-step explanation:

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)