The table shows the charges for a cleaning job.

First 2 hours	$35 per hour
Every additional hour	$25

Mandy paid $145 for a cleaning job. How many hours of cleaning did she pay for?

1. Calculate the cost for the first 2 hours

$\text{Cost for first 2 hours} = 2 \times \char36{}35 = \char36{}70$

2. Calculate the remaining amount paid for additional hours

$\text{Remaining amount} = \char36{}145 - \char36{}70 = \char36{}75$

3. Calculate the number of additional hours

$\text{Additional hours} = \char36{}75 \div \char36{}25 = 3 \text{ hours}$

4. Calculate the total number of hours

$\text{Total hours} = 2 + 3 = 5 \text{ hours}$