Find the least common denominator for these
two rational expressions.
x/x2 + 4x + 4
2/x2 + 1x - 2

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Deshawn uses 3/4 of a box of rice to cook dinner the portion he uses weighs 12 ounces right and solve an equation to find the weight of the full box of rice