Several properties are used to evaluate this expression. Identify the property used in each step. 21 + (36 + 0 + 19)
21 +(36 +19):
21 +(19 +36):
(21 +19) + 36:
40 + 36
76

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.

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Which function has the domain x> -11