Item Amount
£46.25
5 litre tins of emulsion paint
Total payable
£46.25
Total includes VAT at 20% of £7.71

How can the amount of VAT be calculated from the total price?

The volume of the a sphere whoes diameter is 18 cm is cubic cm . if it's diameter were reduced by half, it's volume would be of its original volume

Can anyone me with this question?

You spend $13 to rent five movies for the weekend. new releases cost $3 and regular movies rent for $2. how many of the movies you rented were new releases and how many were regular movies? answer by substitution of systems.