Atraffic violation is randomly selected. what is the probability that it is a speeding violation?

I need to know the number of traffic violations, types, and occurrences.

Here are the steps, you fill in the missing parts.
A. The given ratio is:
2 adults per 9 students or the fraction 2/9
Now put that fraction 2/9=x/171 in other words, how many adults (x) for 171 students?
can you cross multiply and get 9x=342
and solve for x?

How you have the number of students and the number of adults.

B. for food multiply $6 times the total number of people.

C. for tickets multiply 4.50 times the student number and
7.50 times the adult number.

D. for the bus parking fee multiply .04 times you total answer in part C.

Now add up the food, tickets, bus parking and I think you have what Mr. Williams has to budget.