In this line of circles the ratio of red circles to blue circles is 1: 3 how many more red circles would be needed to make the ratio of 3: 1

The vertices of a rectangle are given in the columns of the matrix . if is found to perform a transformation, what are the coordinates of the transformed rectangle? (0, 0), (0, –3), (–3, –3), (–3, 0) (0, 0), (0, 3), (3, 3), (3, 0) (0, 0), (0, 3), (–3, –3), (–3, 0) (0, 0), (0, 3), (–3, 3), (–3, 0)

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)