If the endpoints of have the coordinates a(9, 8) and b(-1, -2), what is the midpoint of ab?
a.
(5, 3)
b.
(4, 5)
c.
(5, 5)
d.
(4, 3)

Acompany is making new soccer uniforms for a team. the company uses 2.5 yards of fabric for each shirt. the company uses 82.5 yards of fabric to make shirts and shorts for 15 players. the equation and solution below represents the situation. 15(2.5+x)=82.5; x=3 what does the solution, x=3, represent?

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

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5