Question
PSLE
The airmail rates to two countries are shown. Kathy sent a letter weighing 73g to Laos and a letter weighing 17g to China by airmail. How much did she pay altogether?

Mass Laos China
First 20g $0.65 $1.30
Every additional 10g $0.35 $0.45
2 m

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PSLE
The airmail rates to two countries are shown. Kathy sent a letter weighing 73g to Laos and a letter weighing 17g to China by airmail. How much did she pay altogether?

Mass Laos China
First 20g $0.65 $1.30
Every additional 10g $0.35 $0.45