Which of the following is the most appropriate unit to describe a time you can drive a car based on the amount of gas?

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]

If f(x)=3 over x+2 - square root x-3 then f(7)=