Line L is perpendicular to line m. Find the value of x and w.

degrees =x

degrees =w​

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

What is the value of f(x) = 2.2 for f(-2)?

How do you determine if an ordered pair is a solution to a given equation?