The answer is C. m∠1 + m∠4 = 180°
Answer:

Step-by-step explanation:
Given expression,

=>
We see that
is common in both numerator and denominator
hence canceling out we get:-

Answer=
Answer:
Step-by-step explanation:so I think
You +8×5=40
-4×3=-12
Answer: The answer to complete the sentence should be D).