How much of a(n) 90% orange juice drink must be mixed with 19 gallons of a 10% orange juice drink to obtain a mixture that is 50% orange juice?

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)

Triangle xyz has vertices x(1,3), y(0,0)

Write the rational number in lowest terms 99/-15