exam Maths Puzzle Numerical Ability

Can you help me with rationalizing the denominator on the following:
5 on the top, fraction bar, 9 minus radical sign 3 on the bottom (the 3 is under the radical sign)

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exam Other Question

Stephen purchases a used car for $8000 knowing it will depreciate in value by 10% each year.Calculate the common ratio between successive values for the first four years.Determine I can't figure this one out. Can anyone assist?

Solve |2/3x - 1 | > 5 for x. Graph the solution on the number line.

There are absolute value marks on the left of the 2/3x an