Question
The table shows the postage charges for sending letters to Vietnam. Usha posted a letter with a mass of 71 g. How much did she pay for the postage?

Mass Cost
First 30 g $1.80
Every additional 10 g
or part thereof
50¢
2 m

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The table shows the postage charges for sending letters to Vietnam. Usha posted a letter with a mass of 71 g. How much did she pay for the postage?

Mass Cost
First 30 g $1.80
Every additional 10 g
or part thereof
50¢