Answer:
Customer will pay $24 for a dress.
Explanation:
Marked price of clothing in a shop = $30
Discount on the clothing = 20% off the marked price
Selling price of the clothing = Original price - discount
= $30 - (20% of $30)
= $30 -
= $30 - $6
= $24
Therefore, customer will pay $24 for a dress.