Answer:
8 + 

Step-by-step explanation:
i just wrote
as a decimal
times 2 with
and
times 5 with 
i might be wrong but hope this helps
I think it's could be wrong though 5/10
A.
10.50 divided by 2 is 5.25. meaning that each ticket is 5.25
23 + x/8
substitute 8 in x
23 + 8/8
23 + 1 = 24