Mathematics, 29.11.2021 01:00 knownperson233
 In 2014, Sally used 5400 units of electricity.
In 2015, the price of electricity increased by 8% but Sally reduced her usage to 4500 units.
Sally paid £680.40 for the units she used in 2015.
Did she pay more or less for the units she used in 2014? Show your working.
Please answer!!
Answers: 2
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 In 2014, Sally used 5400 units of electricity.
In 2015, the price of electricity increased by 8%...
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