exam Maths Puzzle Numerical Ability

TELL WHETHER THE STATMENT IS ALWAYS, SOMETIMES, OR NEVER TRUE FOR NONZERO WHOLE NUMBERS, EXPLAIN YOUR REASONING AND INCLUDE EXAMPLES.

2 (X IS THE POWER) > X ( 2 IS THE POWER)

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exam Other Question

(a+b)2
(a+b)3 Used by itself, the cold water faucet can fill a bathtub in 12 minutes. It takes 15 minutes for the hot water faucet to fill the bathtub. If both faucets are on, how long will it take to fill the bathtub?(round to the nearest .01 minute)