A 1200 W vacuum cleaner is used for 45 minutes45\text{ minutes}45 minutes. The cost of electricity is 15 pence15\text{ pence}15 pence per kWh\text{kWh}kWh. How much did it cost to use the vacuum cleaner?
1.35p1.35\text{p}1.35p
13.5p13.5\text{p}13.5p
£8.108.108.10
£135.00135.00135.00
