Me! ; (

which of the following volumes represent a perfect cube? check all that apply.

a. 1 in.3
b. 4 in.3
c. 8 in.3
d. 12 in.3
e. 25 in.3
f. 27 in.3
g. 64 in.3

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.