You buy boxes of strawberries at the market. Each box costs $6.

That is an incomplete question. The important details missing is how much money I have and how much boxes of strawberries I bought.

Well, exactly how many boxes are bought?

You can use an equation to solve for how much you spend for a number of boxes with:

C=6 (N)

C represents the final cost

6 is the cost for each box

N represents the number of boxes that you are buying.

Let's just say that you want 4 boxes, for example. So let's plug in our numbers into this equation I made for you.

C=6 (4)

C=$24

4 boxes of strawberries will cost 24 dollars.

It works for any amount, try it!