Which point is in the solution set of the given system of inequalities?

Which representation has a constant of variation of -2.5

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

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?