exam Maths Puzzle Numerical Ability

Please if you can help if you have the time. I answered the following question:


What constitutes a small sample size in a test of two
populations? Answer: A population les

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exam Other Question

How do you factor this trinomial----------------------------------------------
{{{{x^2+30x+216=0}}}
Thanks so much!
find the cubic feet of liquid in a tank that is 35% empty, if D= 17 yds,
and H= 38 feet
v=____________________cubic feet