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David hires a septic system contractor to dig trenches fir his new septic tank. The cost to hire the contractor is a fixed cost of $130 plus an additional $85 per hour.
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David hires a septic system contractor to dig trenches fir his new septic tank. The cost to hire the contractor is a fixed cost of $130 plus an additional $85 per hour.

User Tgunn
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3 votes
c(h)=85h+130 hope this helps :)
User Rick Roberts
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3 votes
c(h)=85h+130

The cost as a function of hours.
User Tianlinhe
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