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

Letters

First 20 g 24z¢
Every additional 10 g or less 6z¢
Postcards Per piece 50¢

Howard sent 4 postcards and a letter. The letter weighed 28 g. How much did Howard 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 20 g 24z¢
Every additional 10 g or less 6z¢
Postcards Per piece 50¢

Howard sent 4 postcards and a letter. The letter weighed 28 g. How much did Howard pay in total? Give your answer in terms of z in the simplest form.