What is the solution to this system of equations?
5x + 2y = 29
x + 4y = 13

x = 5, y = 3

x = 2, y = 5

x = 5, y = 2

x = 3, y = 2

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles.

True or false? a circle could be circumscribed about the quadrilateral below.

Are triangles the congruent? write the congruency statement.what is the congruency that proves they are congruent? what is the perimeter of ∆pqr?