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The total cost of airfare on a given rou...

The total cost of airfare on a given route is comprised of the base cost C and the fuel surcharge S in rupee. Both C and S are functions of the mileage m,
C(m) = 0.4 m + 50 and S(m) = 0.03 m . Determine a function for the total cost of a ticket in terms of the mileage and find the airfare for flying 1600 miles.

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