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Math·Algebra·Linear functions

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The function $f(x)=43.50-0.28x$ gives a person’s estimated grip strength, in kilograms, $x$ years after the person’s grip strength was first measured. Based on the function, what is this person’s estimated grip strength, in kilograms, 32.50 years after the person’s grip strength was first measured?

A

10.72

B

34.40

C

43.50

D

52.60