The table shows how much a company charges for a cleaning job. Mrs Chong paid the company $310 for a cleaning job. How many hours of cleaning did she pay for?
Charges | |
First 3 hours | $160 |
Every additional hour | $50 |
Charges | |
First 3 hours | $160 |
Every additional hour | $50 |
Charges | |
First 3 hours | $160 |
Every additional hour | $50 |
Charges | |
First 3 hours | $160 |
Every additional hour | $50 |
Charges | |
First 3 hours | $160 |
Every additional hour | $50 |