Need help asap, It's easy. Please please

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

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.