Pls help me with math ASAP

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

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.

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10