Question

how much more did briana save by purchasing a backpack that cost $45 with a sales promotion of 20% off instead of a backpack that cost $42 with a sales promotion of 10% off?
$1.80
$3.00
$4.80
$6.90

Explanation:

Step1: Calculate 20% - off savings

$45\times0.2 = 9$

Step2: Calculate 10% - off savings

$42\times0.1 = 4.2$

Step3: Find the difference

$9 - 4.2=4.8$

Answer:

$4.80$