Answer:
They both involve writing a rate.
Step-by-step explanation:
EDGENUITY ANSWER
Area = 38 1/4 = 153/4
Width = 4 1/2 = 9/2
Area = Length x Width
Length = Area/Width
So divide both of them:

So the length is equal to
Revenue = $2000
Labour cost = 40 x 8 = $320
Percentage = 320/2000 x 100 = 16%
Answer: 16%