Which expressions are equivalent? select equivalent or not equivalent for each pair of expressions. equivalent not equivalent 8x(4+z) and 32x+8z 9(g+h) and 9g+9h

8x(4+z) and 32x+8z  are not equivalent expressions.

9(g+h) and 9g+9h  are equivalent expressions.

Step-by-step explanation:

8x(4+z) and 32x+8z

8x(4+z) , distribute 8x inside the parenthesis

8x times 4= 32x

8x times z= 8xz

8x(4+z) = 32x+8xz

8x(4+z) and 32x+8z  are not equivalent expressions.

9(g+h) and 9g+9h

9(g+h), distribute 9 inside the parenthesis

9 times g is 9g  and 9 times h is 9h

So 9(g+h)= 9g+ 9h

9(g+h) and 9g+9h  are equivalent expressions.

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol