Respuesta :

waengg

Answer:

q12 B. q17 D.

Step-by-step explanation:

q12

since the side of cubes are the same,

cube root 216 = 6.

q17.

substitute x = 2 5/8 into the equation

4(2 5/8) + 9(2(2 5/8) +1)

= 66 3/4