exam Maths Puzzle Numerical Ability

The pitch of a roof is its slope. Find the pitch of the roof shown.
8 feet by
15 feet

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exam Other Question

I would to solve this problem that I am stuck on the problem is sequences 2,6,8,14 I need to know the next three numbers in the pattern.

Thank You a)x^2-2x=15
b)3x^2+19+1=0
thank you very much