exam Maths Puzzle Numerical Ability

Please help me with this problem:

Simplify the expression:

sqrt (x) times ^3 sqrt (x)

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exam Other Question

The total profit for a company in February is 20% higher than it was in january. The total profit for the two months was 157498. Find the profit for each month I need to simplify this equation:
(2x/x+5)/(6x squared/2x+10)