If a population of 100 cells triples every hour, which function represents p(t), the population after t hours?

Let daily rate be x and mileage be y.

4x + 450y = 240.50

3x + 200y = 146.00

Multiply 1st equation by 3 and second equation by 4

12x + 1350y = 721.50(1)

12x + 800y = 584.00 (2)

Subtracting you get:

550 y = 137.50 or y = 0.25

Substituting value for y in equation (2) you get

x = 32.00

Daily rate = $ 32.00 and mileage = $ 0.25