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Formula
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Area = Length x Width
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Given Information
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[tex]\text {Area = }21 \dfrac{2}{3} \ in^2[/tex]
[tex]\text {Width =} 3 \dfrac{1}{4} \ in[/tex]
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Find Length
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[tex]21 \dfrac{2}{3} \ in^2 =\text { Length }\times 3 \dfrac{1}{4} \\ \\
\text {Length} = 21 \dfrac{2}{3} \ in^2 \div 3 \dfrac{1}{4} \\ \\
\text {Length}= \dfrac{65}{3} \div \dfrac{13}{4} \ \ \Longleftarrow \text {Change to improper fraction} \\ \\
\text {Length}= \dfrac{65}{3} \times \dfrac{4}{13} \ \ \Longleftarrow \text {Change the divide to times} \\ \\
\text {Length}= \dfrac{20}{3} \\ \\
\text {Length}= 6\dfrac{2}{3} \ in[/tex]
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Answer: [tex]6 \dfrac{2}{3} [/tex] (Answer B)
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