exam Maths Puzzle Numerical Ability

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4/5a<-12

a<-15

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exam Other Question

Perform the indicated operation. 3rs(5r^2s-4rs+6rs^2) find the domain of (h/g)(x), given that h(x)=5x/(3x-7) and g(x)=(x^4-1)/(5x-15). State your answer in interval notation.