The airmail rates to a country are shown.
Type | Mass | Cost |
Letters |
First 20 g | 28w¢ |
Every additional 10 g or less | 7w¢ | |
Postcards | Per piece | 40¢ |
George sent 4 postcards and a letter. The letter weighed 29 g. How much did George pay in total? Give your answer in terms of w in the simplest form.