Which of the following statements contain a variable? Check all that apply. O A. The amount of time you ran on the track.
B. How high you can jump.
C. The temperature outside is 31 degrees.
D. The time school starts.

d. it is a convex pentagon because it has five sides and none of the sides would extend into the inside of the polygon.

step-by-step explanation:

what is the question? i am guessing you are looking for the area.

to find an area, you have to do length x width.

in this case, it would be 12 ft x 4 ft = 48 sq. ft