Posted by **Anonymous** on Friday, January 25, 2013 at 11:36am.

For a car travelling at a constant speed of 80km/h, the distance driven, d kilomtres, is represented by d(t)= 50t, where t is the time in hours. The cost of gasoline, in dollars, for the drive is represented by C(d)= 0.07d.

a)Determine C(d(8)) numerically and interpret your result.

b)Describe the relationship represented by C(d(t)).

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