Follow these steps to apply what you have learned about the angles of a triangle.

Find m∠B : 100° + 127° + m∠B = 360°

Then, find the measure of angle A.

Which is the measure of angle A?
A. 133°
B. 53°
C. 47°
D. 80°

Examine the two-step equation. − 7 4 + x 4 = 2 which property of operations allows you to add the same constant term to both sides? amultiplication property of equality bdivision property of equality caddition property of equality dsubtraction property of equality