Of 480 students in a high school, 180 were in ninth year. what percent of the students in the school were in the ninth year

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Suppose your school costs for this term were $4900 and financial aid covered 3/4 of that amount. how much did financial aid cover? and how much do you still have to pay?

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2