The table shows how much a company charges for a aircon servicing job. Mrs Tan paid the company $300 for a aircon servicing job. How many hours of aircon servicing did she pay for?
Charges | |
First 4 hours | $150 |
Every additional hour | $30 |
Charges | |
First 4 hours | $150 |
Every additional hour | $30 |
Charges | |
First 4 hours | $150 |
Every additional hour | $30 |
Charges | |
First 4 hours | $150 |
Every additional hour | $30 |
Charges | |
First 4 hours | $150 |
Every additional hour | $30 |