Question

How much did Briana save by purchasing a backpack that cost $45 with a sales promotion of 20% off instead of a backpack

Answer 1

Answer:

1.80

Explanation:

42 * 0.9 - 45 * 0.8 =

Answer 2

$4.80. $45 with 20% off would have a difference of $9. $42 with 10% would be $4.20. To get the final answer you would subtract 9 by $4.20 to get $4.80.