Chris went to a clothing store's end-of-season sale where everything was on sale for off. He found a jacket priced at $120.00.

Chris went to the register expecting to pay less than $120.00 for the jacket, but when he got there Chris learned that the price on the tag was the discounted price. The cashier told Chris that the tag already reflected a savings of off of the original price.

The original price of the jacket before the sale was $__
. The price Chris expected to pay for the jacket was $__
. If Chris paid the price he expected, it would have been a savings of $__
off of the original price.

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240

the answer is 54 sq. ft. i just did this question, on odyssey ware, and it was right. make brainliest.