Answer:
17.5
Step-by-step explanation:
Since each ticket cost the same we can do 105 divided by 6 to get 17.5. To make sure this is the correct answer we can check it with this equation
6 x 17.5 = 105
the answer is 17.5 hope this helps
-2(v-2)=-3-2v doesn't have a solution
They used 6 vans and 3 buses
x + y= 9
13x + 40y= 198
x= 9 - y
13(9 - y) + 40y= 198
117 - 13y + 40y= 198
27y= 81
y= 3
9-3= 6