book Maths Puzzle Numerical Ability

a^2-ab+9a-9b Divided by a+9

All I would like to know is how to do this problem. Thanks.

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book Other Question

My question says to solve the system of this inequalitie by graphing.
Y>/X+1/
(the > has a line underneath of it.) ( / means the lines that go straight up and down.)

I d f(x)=x^2