exam Maths Puzzle Numerical Ability

How do you simplify a rational expression like d+7/d^2-49, whats the answer?

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exam Other Question

The Wildcats play 84 games this season. At midseason they had won 30 games. To win at least 60% of all games, how many of the reamaining games must they win? (1)
Solve each of the following systems by substitution

5x-2y=-5

y-5x=3





(2)
Solve each of the following systems by substitution

8x-4y=16

y=2x-4