Question

fabian needs $4\frac{1}{2}$ square feet of posterboa project. he buys a sheet of posterboard wit inches and a width of 2 feet. which option c explains why this is enough posterboard for
a yes, he will have enough posterboard b $2 \times 12 = 24$ inches. then, $24 \times 30 =$ inches, and $\frac{720}{12} = 60$ square feet.
b yes, he will have enough posterboard b $\frac{30}{12} = 2.5$ feet. then, $2.5 \times 2 = 5$ squ
c yes, he will have enough posterboard b $\frac{30}{12} = 2.5$ feet. then, $2.5 + 2 = 4.5$ sc
d yes, he will have enough posterboard b $30 \times 2 = 60$ square inches. then, $\frac{60}{12}$ feet.

Explanation:

Step1: Fix missing length info

Assume the sheet length is 30 inches (from options).

Step2: Convert inches to feet

$\frac{30}{12}=2.5$ feet

Step3: Calculate sheet area

$2.5 \times 2 = 5$ square feet

Step4: Compare to required area

Required area: $4\frac{1}{2}=4.5$ square feet. $5>4.5$, so it's enough.

Answer:

B. Yes, he will have enough posterboard because $\frac{30}{12}=2.5$ feet. Then, $2.5 \times 2 = 5$ square feet.