Ali was asked to simplify the expression 3(x - 6) + (4x + 12) - 6x. His work is shown below.

x= -2

Step-by-step explanation:

3(x-6) + (4x+12) -6x

3x -18 + -24x - 72

-3x. -3x

-18 = -27x -72

+72. +72

54=-27x

x= -2

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet

could

step-by-step explanation:

u send me a picture of ur work