Question

This is the call plan for Robert's cell phone:

$15 a month plus free texts plus 20 cents per minute for call time. How much is his bill if he talked 30 minutes and had 115 texts?

Question 4 options:

$6.00


$23.00


$27.00


$21.00

Answer 1

$0.20 times 30 minutes = $6.00
So $6.00 plus the $15 charge each month = $21.00

Answer 2

To answer this, first make an equation representing the data:

15+ 0.20X= Bill

now plug in data you know:

15 + 0.20(30)= bill

and finally solve it:
Bill= $21.00