Answer:
864 in²
Explanation:
First, we need to convert feet to square inches. Since 1 foot is equal to 12 inches, we can convert the width and length of the rectangle as
[tex]\begin{gathered} 3\text{ ft}\times\frac{12\text{ in}}{1\text{ ft}}=36\text{ in} \\ \\ 2\text{ ft}\times\frac{12\text{ in}}{1\text{ ft}}=24\text{ in} \end{gathered}[/tex]Then, the area of the poster in square inches is
Area = Length x width
Area = 36 in x 24 in
Area = 864 in²
Therefore, the answer is 864 in²