exam Maths Puzzle Numerical Ability

Hi,
If F(X)=x^2 and G(X)=3X=1 Then F(G(-2))=?
Thank You!

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exam Other Question

please graph
2x + y= 8
2x - y = 0

thank you G: QR=12, R is the midpoint of QS, ST =14
P: QT= 38