Idk if you have to use the mini busses. I didn't I just used the regular busses.
40 (being how many people the regular busses hold) × 6 ( how many regular busses it would take to hold the minimum of 240 people) = 240
The cost of 6 regular busses would be $480 dollars which is definitely less than they're max budget. Hope that helps!
Divide the number of events by the number of possible outcomes. This will give us the probability of a single event occurring. In the case of rolling a 3 on a die, the number of events is 1 (there's only a single 3 on each die), and the number of outcomes is 6.
For number 13 x=70 and y=115 hope this helped