Evaluate the following function f(x)=9x-7 at x=8*

Pls , the question is in the picture!

Need ! 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?

My hour hand points between the 8 and the 9 in 35 minutes it will be the next hour. what time is it ?