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Fully simplify: (y^2 x y^5) / y^3
(y2 x y5) / y3 When multiplying, the indices must be added together, therefore y2 x y5 = y2+5 = y7 (y2 x y5
You are given layers A,F,D,H without knowing their relative or specific age. Write two ways you can know which layer is the oldest.
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The simpliest way of knowing is when the layers are horizontal, the stratigraphy principle of superposition applies so the top layer is the youngest the bottom layer is the oldest.
