The airmail rates to a country are shown.
Type | Mass | Cost |
Letters |
First 20 g | 23t¢ |
Every additional 10 g or less | 7t¢ | |
Postcards | Per piece | 50¢ |
Gabriel sent 4 postcards and a letter. The letter weighed 24 g. How much did Gabriel pay in total? Give your answer in terms of t in the simplest form.