Katrina has a collection pebbles. The ratio of pink pebbles to brown pebbles is 5:18. The ratio of brown pebbles to grey pebbles is 6:2. Work out the ratio of pink to brown to grey pebbles. Give your answer in its simplest form.
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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)

What number line represents the solution set for the inequality -1/2 greater than or equal to 4

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3