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Math·Algebra·Linear functions

easy

The cost of renting equipment for up to 5 days is $270 for the first day and $135 for each additional day. Which equation gives the cost $y$ for $x$ days, where $x\le 5$?

A

$y=135x+135$

B

$y=270x-135$

C

$y=270x+135$

D

$y=135x+270$