Answer:
C = $20.15
Explanation:
Let's write down what is given first. There is a customary and non-changing $12.95 fee per month regardless of the actual cost to call. There are o.16 cents PER minute of calling, so 1 minute of calling = 0.16 cents. 415 minutes of calls are made in this month. C is the total cost.
We can write a function expression wih the given so when we input the value of the minutes, we get the answer.
x = no. of minutes
C =
f(x) = 0.16x + 12.95
We already know what x is here.
x = 415
Input the value of x into the function.
= 0.16(415)+12.95
= 7.2 + 12.95
= 20.15
C = $20.15
Hope this helped :)!
