What is the range of r=-2cos5θ? Does it have any asymptotes?

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

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?