55-9 (200+4) - (10x90) + 5 - (44)5+156-256 10 can you show you work too for #1

What situation is an example of an observational study

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

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?