The answer is 10-7=3. Hope this helps
Answer:
it is Zero 0
Step-by-step explanation:
He would be able to purchase 7 packs of baseball cards.
you would have to cross-multiply and divide. the work would look like
$12 $21
— = —
4 x
you multiply 21 by 4 and get 84, then divide by 12 and get 7