Find the constant of proportionality for each set of values

Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related

Sweet t saved 20 percent of the total cost of the green-eyed fleas new album let there be fleas on earth. if the regular price is $30 how much did sweet save

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)