The mass of denise's rock sample is 684 grams. the mass of pauline's rock sample is 29,50 centigrams. how much greater is the mass of denise's sample than pauline's

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

Asap! i'm not good math and i'm lost.

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.