A phone plan costs $30/month plus $0.10 per text over 500 texts. In March you sent 650 texts. What was your bill?
Answer
$45
How to solve it
1
Base cost: $30
2
Overage: 650 - 500 = 150 texts
3
Overage cost: 150 × $0.10 = $15
4
Total: $30 + $15 = $45
Hints
Calculate texts over limit
Multiply overage by cost per text
Add to base cost