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February 1, 2015

February 1, 2015

Posted by **ReRe** on Monday, February 8, 2010 at 1:26pm.

- math -
**drwls**, Monday, February 8, 2010 at 1:33pmThe per-minute charge is $3.20/8 = 40 cents.

Assume there is an additional connection charge (A) and fit an equation of the form

Cost = A + 0.40 t

to the existing data. The cost will be in dollars and t must be in minutes.

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