20x2 = 40 in width
180-40= 140
140/2=70
70 inches
Basically it's telling you what equation to use for the specific value of g(x). If x is g(2) then you would use the third equation. 2x - 5. so 2(2)-5= -1
4 hours. You would multiply 1/8 by 1/2 and get 4.
