using System;

​

private float costEquation(int min, int bikeNumbers)

{

        float x = (float) (1.235204 - 0.3861872);

        float y = (float) (min / 28.85022);

        float myPower = (float) Math.Pow(y, 1.429056);

​

        float division = x /(1+myPower);

​

        float total = (float) (0.3861872 + division);

​

​

        //float realTotal = total*min*bikeNumbers;

        float realTotal = total*min;

​

        int returnTotal = (int)realTotal;

​

        int fiveModulas = returnTotal % 5;

​

        int returnRealTotal = (5-fiveModulas) + returnTotal;

​

        //return returnRealTotal;

        return returnRealTotal*bikeNumbers;

}

​

​

// Change the params here

Console.WriteLine(costEquation(30, 2));