Let, the decimal = x
It would be: x * 1/100 = 0.002
x = 0.002 * 100
x = 0.2
In short, Your Answer would be 0.2
Hope this helps!
The independent would be the base amount (0.25 in this case) The dependent would be :
the sum of the minutes x 0.25 or the entire phone bill
It is undefined because you can’t have 0 as a denominater
