Answer:
Sleaford Rockers will get £94000.
Explanation:
The arena has come to an agreement with the Sleaford Rockers to pay them according to this formula:

where,
b is band payment
t is ticket sales
p is ticket price
s is security cost
We need to find amount that will the Sleaford Rockers get paid if they sell 8,000 tickets at £12 each and the security cost is £4,000.
Substitute t=8000, p=12 and s=4000 in the given formula.




Therefore, Sleaford Rockers will get £94000.