Final answer:
Yes, Justin will have $21 left over.
Step-by-step explanation:
To determine if Justin will have enough money to buy 3 packages of blank DVDs that cost $17 each, we need to calculate the total cost of the DVDs and then subtract it from the amount of money Justin has. The total cost of 3 packages of DVDs is $17 x 3 = $51. If Justin has more than $51, he will have enough money left over.
Looking at the given answer choices, only option A) Yes, he will have $21 left over is greater than $51. Therefore, the correct answer is A) Yes, he will have $21 left over.