(adsbygoogle = window.adsbygoogle || []).push({}); Greatest Integer Function.. help!!

1. The problem statement, all variables and given/known data

Well this is the problem a plomer charges 80 bucks ones he arrives at your home and charges and extra 25 per hour.. Give the equation,,

Kind of i dont get it is for extra credit but still i dont like it when i dont know how to do it

2. The attempt at a solution

i put these but i think is wrong..

y=28[(x+1)]+80

But if i put 1hour.. plus 1 gives 2 hours so he would be chargin 2 hours just for working one..

Nice deal!! hahaha But still i dont think this is it

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# Greatest Integer Function.. help

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