Solve the equation.
4x2 + 56x + 132 = 0

Which three lengths could be the lengths of the sides of a triangle? 21 cm, 7 cm, 7 cm 9 cm, 15 cm, 22 cm 13 cm, 5 cm, 18 cm 8 cm, 23 cm, 11 cm

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

Find the area of an equilateral triangle with a side of 6 inches