How many solutions will this system have? A. One
B. Two
C. Infinitely many solutions
D. No solution

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

Combine like terms to make a simpler expression 3z+z

Plz ( true - false) all triangles have interior angles whose measure sum to 90.