The airmail rates to a country are shown.
Type | Mass | Cost |
Letters |
First 8 g | 25t¢ |
Every additional 4 g or less | 7t¢ | |
Postcards | Per piece | 80¢ |
Simon sent 4 postcards and a letter. The letter weighed 18 g. How much did Simon pay in total? Give your answer in terms of t in the simplest form.