exam Maths Puzzle Numerical Ability

I think I have the answer correct on the equation, but I am not certain.
Find the domain of the function
p(x)=/x+9/
Answer: x/x is a real number

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exam Other Question

solve. then graph
y+4<6
Solve each of the following systems of linear inequalities graphically.
3x - y &#8804; 6
x &#8805; 1
y &#8804; 3