HELP Which of the following expressions can be used to calculate the circumference of a circle?

Write a function that matches the description. a cosine function has a maximum of 5 and a minimum value of -5. f (r) =

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

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?