The airmail rates to a country are shown.
Type | Mass | Cost |
Letters |
First 16 g | 28r¢ |
Every additional 8 g or less | 9r¢ | |
Postcards | Per piece | 50¢ |
Seth sent 4 postcards and a letter. The letter weighed 35 g. How much did Seth pay in total? Give your answer in terms of r in the simplest form.