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

Water consumption Rate
70 m3 of water usage and below  $1.10 per m3
Additional water usage above 70 m3 $1.40 per m3

Betty's family paid $84 for water usage in the month of August. What is the most amount of water that they could have used in August?
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  $1.10 per m3
Additional water usage above 70 m3 $1.40 per m3

Betty's family paid $84 for water usage in the month of August. What is the most amount of water that they could have used in August?