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

Letters

First 12 g 29z¢
Every additional 6 g or less 8z¢
Postcards Per piece 90¢

Tommy sent 3 postcards and a letter. The letter weighed 20 g. How much did Tommy pay in total? Give your answer in terms of z 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 29z¢
Every additional 6 g or less 8z¢
Postcards Per piece 90¢

Tommy sent 3 postcards and a letter. The letter weighed 20 g. How much did Tommy pay in total? Give your answer in terms of z in the simplest form.