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The sum of two numbers is 12 and their difference is 18 what are the two numbers

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

Consider the following estimates from the early 2010s of shares of income to each group. country poorest 40% next 30% richest 30% bolivia 10 25 65 chile 10 20 70 uruguay 20 30 50 1.) using the 4-point curved line drawing tool, plot the lorenz curve for bolivia. properly label your curve. 2.) using the 4-point curved line drawing tool, plot the lorenz curve for uruguay. properly label your curve.