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Math·Algebra·Linear functions

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For groups of 25 or more people, a museum charges $22 per person for the first 25 people and $14 for each additional person. Which function $f$ gives the total charge, in dollars, for a tour group with $n$ people, where $n\ge 25$?

A

$f(n)=14n+200$

B

$f(n)=14n+22$

C

$f(n)=14n+550$

D

$f(n)=36n-350$