exam Maths Puzzle Numerical Ability

1) Simplify: (2x4y0 /z2)- 5

2) Simplify: (152x7y2 )/ (150x9y)

3) Write in scientific notation: 5,754,000,000

4) Perform the operation: (5x2 - 3x - 9) + (2x2 -

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exam Other Question
When John F. Kennedy was Sworn in as President, he was 1 year older than Teddy Roosevelt was when Roosevelt took the office. If the sum of their when each became President was 85, how wold was Kennedy when he was sworn in? I am haveing trouble with this one.

For Richter scale R=log A/P

Find the measure to the nearest tenth, of an earthquake on the Richter scale with amplitude of 2,500 and period of .06.

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