X - 3y + z
Another term would be the 3rd term which would be working with 3d planes instead of 2d planes.
Step-by-step explanation:

Answer:
C. 68.1 ft.
Step-by-step explanation:
Hope this helps
Set up a proportion. 2/5 = x/40
to solve the equation first cross multiply.
x*5=40*2
x*5=80
now divide both sides by 5, 80 divided by 5 is equal to 16.
so the number of girls in the computer lab is 16.