There are 90 kids that attend harlem high school. if 40 are in mrs. fetter's class, and 20 are in mrs. cassy's class, what percent make up the last classroom?

Which of the choices shown could be used to prove that aacp=abcp ?

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park is the cost of admission proportional to the amount of people entering the amusement park? explain.

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?