A telephone pole extends 6 feet below ground and 24 feet above ground. What is the total length x of the pole?

30 feet

Step-by-step explanation:

24 feet
--- ground
6 feet

it cant be that simple ?

false.

step-by-step explanation:

false.

cavalieri's principle makes that statement about the volumes, not about the areas.

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