Respuesta :
Distance is product of speed and time.
Total cost is given by an expression, C = 3m + 4
Since, A taxi driver charges $3 for every kilometre driven, plus $4 per trip.
For 1 Kilometer driven, charges = $3
So, for m kilometer , charges = 3*m = 3m
Since, for one trip $4 also charges.
Therefore, total cost = 3m + 4
C = 3m + 4
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