Answer:
Step-by-step explanation:
Let X be the total number of minutes.
the 1st 3 minutes of your call is Php 8, this is a constant value.
the the charge for remaining minutes after the 3minutes count can be written as
3 ( X - 3 )
therefore, Y (total charge)
Y = 8 + 3 (X - 3)
simplifying the equation
Y = 8 + 3X - 9
Y = 3X - 1
the answer is B.