Which number is a rational number?

13/16 sqrt
34 sqrt
49 sqrt
9/2 sqrt

What is an alternate exterior angle

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.

Which of the following is another way to express the difference between -5 and 8?