A store offers a discount of $2.25 on each sweater that originally cost $19.55. What is the total cost of 3 sweaters with the discount?

$51.90

Step-by-step explanation:

We need to work out the cost of the 3 sweaters, so each sweater's original cost needs to be subtracted by $2.25.

$19.55 x 3 = $58.65  Here, we work out the total cost of the 3 sweaters without the discount.

$2.25 x 3 = $6.75  This is the discount amount for the 3 sweaters in total.

$58.65 - $6.75 = $51.90 We subtract the total original cost by the discount amount to get the answer.

expression #3 is not equivalent. the others are.

astronomers is your final answer! : )