Which expressions are equivalent to 30 - 3y - 9? 3(17-y)
3(20-y-3)
17(3-y)
Or 20(3-3y)-9

What expression is equivalent to 42x-56y

50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.

Given the quadratic function f(x)=3x^2-24x+49 a. use “completing the squares” to convert the quadratic function into vertex form b. state the vertex c. find the x and y intercepts d. graph the function