Explanation:
What is given is a charge of $37.50 for 1.5 hours worked.
pay rate = $37.50/ 1.5 hours
pay rate = $25 per hour worked
so complete table:
0.5 hours * $25 = $12.50
1 hour * $25 = $25
2 hours * $25 = $50
3 hours * $25 = $75
3.5 hours * $25 = $87.50
4 hours * $25 = $100