Fabian needs 4 1/2 square feet of posterboard for an art project. He buys a sheet of posterboard with a length of 30 inches and a width of 2 feet. Which option correctly explains why this is enough posterboard for the project?

720 is greater than 648

Step-by-step explanation:

The required posterboard for an art project = 4 1/2 square feet

1 square foot = 144 square inches

4 1/5 × 144 square inches

= 648 square inches.

The available posterboard is with a length of 30 inches and a width of 2 feet.

One foot = 12 inches

The area of the available posterboard 30 × 2 × 12 = 780 inches

Since the available area is greater than the required area, the posterboard will therefore be enough for the project.

c is the correct answer

step-by-step explanation:

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