For whitch number will a list of its factor include 7 A.24 B.26 C.28 D.30

(hurry! ) which expression is equivalent to the following complex fraction?

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

During each minute of a comedy show, carlin laughs 55 times. carlin watches 33 comedy shows every day, and each show is 40 minutes long. how many times does carlin laugh every day due to the comedy shows?