Astore has a 40\%40%40, percent off sale on headphones. with this discount, the price of one pair of headphones is \$36$36dollar sign, 36. what is the original price of the pair of headphones?

$60.

Step-by-step explanation:

Let x be the original price of the pair of headphones.

We have been given that a store has a 40% off sale on headphones. This means that price of headphones after the sales would be 60% (100-40) of x.

We are also told that with the discount, the price of one pair of headphones is $36.

We can represent this information is an equation as:

Therefore, the original price of the pair of headphones is $60.

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.