Answer:
Since the box is cube-shaped, its volume is V = 30 ft^2 = s^3, where s is the length of one side. Then s = ∛30, or approx. 3.11 ft. The length of one side of the 9 ft^2 square poster is √9, or 3 ft. Yes, the 3 ft^2 poster will fit the box, whose bottom area is 3.11 ft^2.
Step-by-step explanation:
