Simplify $$\(a \times a \times a \times a \times a\)$$ (1) (b) Simplify $$\(8 b \times 3 c\)$$ (1) (c) Expand 3(x+4) (1) $$\(Q=5 v^{2}-w\)$$ (d) Work out the value of $$\(Q\)$$ when $$\(v=\frac{1}{2}\)$$ and $$\(w=\frac{1}{4}\)$$ $$\(Q=\)$$ (2)

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