Answer:
Kareem needs 864 cards more to reach his goal.
Step-by-step explanation:
Number of cards Kareem has = 216
Number of cards in 1 set = 72
Total number so cards in 15 set = 15 × 72 = 1,080
Number of cards Kareem need to reach his goal =x
[tex]1,080=216+x[/tex]
[tex]x=1,080-216=864[/tex]
Kareem needs 864 cards more to reach his goal.