Ejercicio 1 Halle los valores de los ángulos A y B

Ejercicio 2
Halle los valores de los ángulos D y E

Ejercicio 3
Considere al triángulo ABC equilátero y halle los valores de y y x

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?