exam Maths Puzzle Numerical Ability

Find the solution set in interval notation: x+12/x+2 <= 3
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exam Other Question

INDICATE WHETHER THE EQUATION HAS NO SOLUTION OR IS TRUE FOR ALL REAL NUMBERS. IF NIETHER IS THE CASE, SOLVE FOR THE VARIABLE.

10x-2(4+5x)=8
A kit has an 8 inch side and a 15 inch side which form a right angle. find the length of the diagonals of the kite.