Question 251535
this is where you went wrong
total=203+1017=1220  and child's tickets: 4.50(428-203)= 1017
It is 429 not 428
total=203+1017=1220 should be total=203+c=429
c is the number of children not the cost of the children's tickets
The two equations you need are
a=number of adults
c= number of children
a+c=429
8a+4.5c=2641