exam Maths Puzzle Numerical Ability

Add. Simplify if possible.

2 + 1
over
9t to the third power 6t to the second power

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exam Other Question

x^2+5x-14 divided by x^3+10x+21X

Hi, I just wante to make sure I have the right answers, which is X-2 over x(X+3). Thank You! Hello, Im from norway so i dont know what type of question this is:
This should be REALLY easy but i just cant remember what to do, hehe.
What is a+5? Because if a*5=5a, can a+5 be 5a?