Express (x-7)2 as an equivalent trinomial and then test the equivalent using x=4 in the original expression and the trinomal

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)

List the sides of δrst in in ascending order (shortest to longest) if: a ∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12°

Consider the triangle. which shows the order of the angles from smallest to largest? angle a, angle b, angle c angle b, angle a, angle c angle b, angle c, angle a angle c, angle a, angle b