Show that the ratios 14/18 and 28/36 form a proportion by finding a common multiplier.

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Simplify the expression 10/11(22z) + (a+5) -1

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex