The table shows how much a company charges for a aircon servicing job. Mrs Loo paid the company $310 for a aircon servicing job. How many hours of aircon servicing did she pay for?
Charges | |
First 2 hours | $110 |
Every additional hour | $50 |
Charges | |
First 2 hours | $110 |
Every additional hour | $50 |
Charges | |
First 2 hours | $110 |
Every additional hour | $50 |
Charges | |
First 2 hours | $110 |
Every additional hour | $50 |
Charges | |
First 2 hours | $110 |
Every additional hour | $50 |