The table shows how much a company charges for a cleaning job. Mrs Thia paid the company $520 for a cleaning job. How many hours of cleaning did she pay for?
Charges | |
First 4 hours | $310 |
Every additional hour | $70 |
Charges | |
First 4 hours | $310 |
Every additional hour | $70 |
Charges | |
First 4 hours | $310 |
Every additional hour | $70 |
Charges | |
First 4 hours | $310 |
Every additional hour | $70 |
Charges | |
First 4 hours | $310 |
Every additional hour | $70 |