Find the distance between the pair of points.(-6, -20) and (-17, -22)

An equation is shown below: 3(4x − 2) = 1 which of the following correctly shows the first two steps to solve this equation?

Which of the following is true for the relation f(x)=2x^2+1

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).