Question
The table shows the charge for water services provided by the utilities board.

Water consumption Rate
70 m3 of water usage and below  $1.70 per m3
Additional water usage above 70 m3 $2.20 per m3

Gwen's family paid $141 for water usage in the month of September. What is the most amount of water that they could have used in September?
2 m

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The table shows the charge for water services provided by the utilities board.

Water consumption Rate
70 m3 of water usage and below  $1.70 per m3
Additional water usage above 70 m3 $2.20 per m3

Gwen's family paid $141 for water usage in the month of September. What is the most amount of water that they could have used in September?