exam Maths Puzzle Numerical Ability

Subtract, using the vertical method

7x^2 + 6x from 9x^2 - 3

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exam Other Question

How do you change slope intercept equation like y=-3/4x+3 into a standard equation? Calculate the speed of the following:
A man runs 1000 metres in 184 seconds (calculate his speed in kiometres per hour)

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