The total cost of building a brick pathway outside of a school involves the cost of bricks and the cost of labor. The length of the pathway is p
meters, and the width of the pathway is
2
meters.

If the expression
30
(
2
p
)
+
250
gives the total cost of the brick pathway, what does the
30
represent?

the area of the brick pathway in square meters
the area of the brick pathway in square meters

the cost of labor per hour
the cost of labor per hour

the cost of the bricks per square meter
the cost of the bricks per square meter

the total cost of the labor