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

Letters

First 20 g 29k¢
Every additional 10 g or less 9k¢
Postcards Per piece 60¢

Ethan sent 4 postcards and a letter. The letter weighed 42 g. How much did Ethan pay in total? Give your answer in terms of k 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 29k¢
Every additional 10 g or less 9k¢
Postcards Per piece 60¢

Ethan sent 4 postcards and a letter. The letter weighed 42 g. How much did Ethan pay in total? Give your answer in terms of k in the simplest form.