Answer:
m∠b=20°
m∠c=160°
Step-by-step explanation:
∠c and the 160° angle are vertical, so they are congruent.
m∠c=160°
∠c and ∠b are supplementary, so their sum is 180°.


So, m∠b=20°.
Answer:
9^2 + 12^2 = x^2
81 + 144 = 225
225 ÷ 15 = 15
the answer for this question is 15
Step-by-step explanation:
A squared + B squared = C squared
The answer is a - yes, because of the associative property
Answer:
B or 5
Step-by-step explanation:
25/5 =5
100/20 = 5