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Answer:
Step-by-step explanation:
Area of rectangle = length * width
length = Area ÷ width
= 8 1/10 ÷ 2 1/4
= 81/10 ÷ 9/4
[tex]=\dfrac{81}{10}*\dfrac{4}{9}\\\\\\=\dfrac{9}{5}*\dfrac{2}{1}\\\\=\dfrac{18}{5}\\\\\\= 3\dfrac{3}{5}[/tex]