2xy+3ab-4xy-9ab
2xy-4xy 3ab-9ab
-2xy -6ab
answer = -2xy-6ab
17.8 i think to be honest
Remember
a^2-b^2=(a-b)(a+b)
5(x^2-16)
5(x^2-4^2)
5(x-4)(x+4)
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
Answer:
-7
Step-by-step explanation:
-7 + 5 = -2
Can u mark me brainly pleasee???