The monthly cost C of driving a car depe...

The monthly cost C of driving a car depends on the number of miles driven D. Jo found that in November her cost of driving was $380 for 480 miles, and in December her cost was $460 for 800 miles. If the relationship between C and D is linear , what does the slope of the line , with C as a function of D , represent ?

The cost per mile

The cost for 320 miles

The distance driven per dollar

The distance driven for $80.

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