Answer:
Valeria should use the reward worth $2 off her next purchase.
Explanation:
To find the answer, you have to determine what Valeria would pay with each discount:
-reward worth $2 off her next purchase:
$7.50-$2=$5.50
-Save 15% coupon:
$7.50*0.15=$1.125
$7.50-$1.125=$6.375
According to this, the answer is that Valeria should use the reward worth $2 off her next purchase as she will pay $5.50 and with the save 15% coupon she would have to pay $6.375.