The airmail rates to a country are shown.
Type | Mass | Cost |
Letters |
First 20 g | 23d¢ |
Every additional 10 g or less | 7d¢ | |
Postcards | Per piece | 50¢ |
Julian sent 5 postcards and a letter. The letter weighed 23 g. How much did Julian pay in total? Give your answer in terms of d in the simplest form.