The airmail rates to a country are shown.
Type | Mass | Cost |
Letters |
First 10 g | 20d¢ |
Every additional 5 g or less | 11d¢ | |
Postcards | Per piece | 90¢ |
Daniel sent 2 postcards and a letter. The letter weighed 23 g. How much did Daniel pay in total? Give your answer in terms of d in the simplest form.