The airmail rates to a country are shown.
Type | Mass | Cost |
Letters |
First 12 g | 27i¢ |
Every additional 6 g or less | 7i¢ | |
Postcards | Per piece | 40¢ |
Will sent 3 postcards and a letter. The letter weighed 28 g. How much did Will pay in total? Give your answer in terms of i in the simplest form.