Answer:
For first 30 GB, a fix payment of 500 Pesos, equation would be:
C(g) = 500(g⁰), note: g⁰ = 1, where g ≤ 30
It is also equal to C(g) = 500 when g ≤ 30.
For 30 GB to 49 GB, 30 pesos each GB will be charged, equation would be:
C(g) = 500 + 30(g-30)
C(g) = 500 + 30g - 90
C(g) = 30g + 410, where 30 < g < 50
For 50 GB and above, the equation will be:
C(g) = 1000(g⁰), where g ≥ 50
It is also equal to C(g) = 1000, when g ≥ 50.
