Pair of shoes cost three times as much as a scarf. The total cost of one pair shoes and one scarf is $32. If S represents the cost of one scarf, which equation could use to find the cost of one scarf?

Let's break down all the information we receive from the question.

One pair of shoes = three times as much as a scarf

One pair of shoes and one scarf = $32

We need to make an equation where 3s = pair of shoes and s=scarf. We then need to put one pair of shoes + one scarf = 32.

3s+s=32

Now add.

4s=32

You could use 4s=32 (or 32:4=s).