Astorage shed with a flat roof is 4 yards long by 3 yards wide by 2 1/2 yards tall. a cubic yard is equal to 27 cubic feet. how many cubic feet of storage space does the shed enclose.

For this case, the first thing we must do is calculate the volume.
 We have then:
 V = (l) * (w) * (h)
 Where,
 l: long
 w: width
 h: height
 Substituting values we have:
 V = (4) * (3) * (2.5)
 V = 30  yd ^ 3
 Applying the conversion we have:
 V = (30) * (27)
 V = 810 feet ^ 3
 
 the shed does enclose 810 cubic feet of storage space

Answer is either b or c