Determine which of these illustrates two quantities that combine to make 0.

a)bill lost ten pounds and then gained ten pounds. b)a business's profit if its income is less than its expenses. c)a business's loss its income is expenses are more than its income. d)it is ten degrees below zero and then 

Triangle xyz, with vertices x(-2, 0), y(-2, -1), and z(-5, -2), undergoes a transformation to form triangle x′y′z′, with vertices x′(4, -2), y′(4, -3), and z′(1, -4). the type of transformation that triangle xyz undergoes is a . triangle x′y′z′ then undergoes a transformation to form triangle x′y′z′, with vertices x″(4, 2), y″(4, 3), and z″(1, 4). the type of transformation that triangle x′y′z′ undergoes is a .