The airmail rates to a country are shown.
Type | Mass | Cost |
Letters |
First 10 g | 27s¢ |
Every additional 5 g or less | 12s¢ | |
Postcards | Per piece | 50¢ |
Albert sent 2 postcards and a letter. The letter weighed 12 g. How much did Albert pay in total? Give your answer in terms of s in the simplest form.