Question

I came in super late

Answer 1

Since we know that 1/4 is equal to 25%, or 0.25 in decimal form, we are able to work with 0.75 in the expression.

We are told to use j as the original price of the jeans, so we can set up the expression:

`j-0.25j`

to represent the cost of the jeans with the discount.

Then to simplify, we simply take out j as a common factor, and solve what's in the parentheses:

`j(1-0.25)`

`j(0.75)` or
`0.75j`

Using this equation, we can solve for the b part of the question. If the pair of jeans originally costs $60, plug in 60 to where j is in the expression:

`0.75j`

`0.75(60)=45`

Therefore, the cost of the jeans after the discount is C) $45.