exam Maths Puzzle Numerical Ability

Statistics. A survey of 400 people found that 66 were left-handed. What percent
of those surveyed were left-handed?

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exam Other Question

Hello out there,I need some help with one tough problem,the problem is,Which of the following points are solutions to:2x-3y<0 and x+y>4 (2,3),(0,1),or(1,4),thanks to whoever can help. determine the domain and idenify any vertical asympote and x intercepts.
h(x)=ln(x+1)