If x= -1/4 and y = -6, then find 1/3y

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Abag of jelly beans contain 13 pink, green, 20 yellow, 10 black, 7 red, and 11 orange jelly beans. approximately what percent of the jelly beans are pink and yellow?