Answer:
How many pounds of cheesecake did Min-jun buy? 12 pounds
Explanation:
First find out how much Min-Jun spent on cheesecake:
$53 - 38.60 = $14.40 spent on cheesecake
Since cheesecake it $1.20 per pound:
$14.40 / $1.20 = 12 pounds of cheesecake were bought