The table shows how much a company charges for a cleaning job. Mrs Yap paid the company $310 for a cleaning job. How many hours of cleaning did she pay for?
Charges | |
First 2 hours | $170 |
Every additional hour | $70 |
Charges | |
First 2 hours | $170 |
Every additional hour | $70 |
Charges | |
First 2 hours | $170 |
Every additional hour | $70 |
Charges | |
First 2 hours | $170 |
Every additional hour | $70 |
Charges | |
First 2 hours | $170 |
Every additional hour | $70 |