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Math·Problem-Solving and Data Analysis·Ratios, rates, proportional relationships, and units

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One side of a flat board has an area of $320$ square inches. If a pressure of $20$ pounds per square inch of area is exerted on this side of the board, what is the total force, in pounds, exerted on this side of the board?

A

$16$

B

$300$

C

$340$

D

$6,400$