The airmail rates to a country are shown.
Type | Mass | Cost |
Letters |
First 20 g | 29i¢ |
Every additional 10 g or less | 9i¢ | |
Postcards | Per piece | 80¢ |
Andy sent 4 postcards and a letter. The letter weighed 49 g. How much did Andy pay in total? Give your answer in terms of i in the simplest form.