50 points. The expressions a(8x +7) and 4x +3.5 are equivalent What is the value of a? 50 points if right i will mark brainiest answer asap to for test help! Show your work please.

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.

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

Betty correctly answers 30 questions on your math test there are 40 questions on the test what percent of the questions did she answered incorrectly