Answer:
7(2x+3y+z)
Step-by-step explanation:
you've got to take a 7 out of each phrase
so 14x/7= 2x
21y/7= 3y
7z/7= z
So 7(2x+3y+z)
I think it is C .....
64q^6r^8s^4
(-8q^3r^4s^2)^2
= (-8)^2 q^(3*2) r^(4*2) s^(2*2)
= 64q^6r^8s^4
47
b
