A: -3.25 or -13/4,b:-13/4?????
Answer:
84°
Step-by-step explanation:

Answer:
angels that are 180 degrees
Step-by-step explanation:
Answer:
92 degrees
Step-by-step explanation:
Answer: x=75
Explanation:
x+10+x+20=180
combine like terms
2x+30=180
subtract 30 from each side
2x=150
divide each side by 2
x=75