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Math·Geometry and Trigonometry·Area and volume

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A square tile has a side length of $53x$ centimeters (cm). Which equation gives the area $A$, in ${\text{cm}}^2$, for $7$ of these square tiles?

A

$A=(7)(x+53)(x+53)$

B

$A=(7)(x-53)(x-53)$

C

$A=(7)(53x)(53x)$

D

$A=(7)\left(\frac{x}{53}\right)\left(\frac{x}{53}\right)$