book Maths Puzzle Numerical Ability

Find the ordered pair solution of y = 2/3x - 2, corresponding to x = 3.

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book Other Question

An airplane leaves Chicago for Cleveland at a speed of 475 mph. Twenty minutse later, a plane going to Chicago leaves Cleveland, which is 350 miles from Chicago, at a speed of 500 In a + bi form, what is (2 + i sqrt 3)^2