Hi :)
If a cell phone plan costs 30 per month and charges 15 cent per text message and 200 text messages were sent,
The base charge is 30 dollars, multiply 0.15 by 200
30 + (0.15 * 200)
30 + (30)
For this month,
$60
Hope this helps,
Jeron
P.S (brainliest? only if you think i really helped you)