write a function g whose graph represents the indicated transformation of the graph of f. f(x)= |3x|+2; horizontal shrink by a factor of 1 when I looked at the answer it said f(x)= |9x|+2 can someone explain how this answer is correct?

The total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?