I need reasons & statements for the problem below.

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Identify the number 127 as a rational or irrational. explain

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?