Answer:
£6,000
Step-by-step explanation:
<u>"Split in a ratio of 2:5 between the area and Phillip Cage"</u> means that arena got 2 parts and Phillip Cage got 5 parts.
Hence, in total there are 2 + 5 = 7 parts
Also, the total money is £21,000
Each part is worth 
<u>"How much money did the arena make from Phillip Cage’s concert?"</u>
The arena got 2 parts and each part is worth £3000, so arena made
pounds