Question

Bridget is making greeting cards, which she will sell by the box at an art fair. She paid $30 for a booth at the fair and the materials for each box of cards cost $2. She will sell the cards for $5 per box of cards. At some point, she will sell enough cards so that her sales cover her expenditures. How much will the sales and expenditures be?

Answer 1

when she sold 10 cards, it will cover all her cost.

Explanation:

Profit(without charge of booth)=5x-2x

Profit=3x-30

Calculating:

3x=30

x=10