The measure of an angle in nineteen times the measure of a supplementary angle. what is the measure of each angle

If the measure of xyz is 81 what is the measure of yz

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.