You mulitply 25 by .2 to get 5 and you add that to 25 to get $30
The answer would be 15h+25 because h isthe variable representing hours and they charge $15 for every hour. And also, the plus 25 is for the setup fee.
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One painter can finish a certain job 5 hours before another painter who is doing the same job. When they work together they can finish this job in 6 hours. How long does it take for each painter to do the job by himself? 6 hours</span>
Hope it helps.
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