(7+3)^5 please help and can i get the explaintion

Its worth 10000000 points need asap if you answer correctly ill mark brainliest

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

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.