What is the justification for step 2 in the solution process

12y-40-4y=6y-18

step 1: 8y-40-67-18
step 2: 2y-40= -18

a. the addition property of equality
b. the subtraction property of equality
c. the multiplication property of equality
d. the division property of equality

Write a story that matches with the expression 42x-5 pls hurry

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line

A. plot the data for the functions f(x) and g(x) on a grid and connect the points. x -2 -1 0 1 2 f(x) 1/9 1/3 1 3 9 x -2 -1 0 1 2 g(x) -4 -2 0 2 4 b. which function could be described as exponential and which as linear? explain. c. if the functions continue with the same pattern, will the function values ever be equal? if so, give estimates for the value of x that will make the function values equals. if not, explain why the function values will never be equal.