Question
PSLE
The airmail rates to a country are shown.
Type Mass Cost

Letters

First 12 g 23y¢
Every additional 6 g or less 12y¢
Postcards Per piece 60¢

Jack sent 3 postcards and a letter. The letter weighed 21 g. How much did Jack pay in total? Give your answer in terms of y in the simplest form.
2 m

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PSLE
The airmail rates to a country are shown.
Type Mass Cost

Letters

First 12 g 23y¢
Every additional 6 g or less 12y¢
Postcards Per piece 60¢

Jack sent 3 postcards and a letter. The letter weighed 21 g. How much did Jack pay in total? Give your answer in terms of y in the simplest form.