exam Maths Puzzle Numerical Ability

Solve 5^(2x+1) >or= 50.

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exam Other Question

X^2+6X
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3X^2+6X-24

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X^2+2X-8
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X+6
The cost of a fish dinner to the owner of the Golden Wharf restaurant is $7.95, the fish dinner is sold for $11.95. Find the percent markup?