Answer:
49
Step-by-step explanation:
$7
70 / 10 = 7
2,9
i can't understand ur question
4) -(m+12)(m-12)
5) (y+12)^2
6) (x+5)(x-5)(x^2-25)
7) (a+9)(-y+7)
8) Prime
9) Prime
Hope this helps!