19 is the answer 4+5(3)= 4+15=19
Answer:
(-3,7)
Step-by-step explanation:
Answer:
b. The supplements of congruent angles are congruent
Explanation:
Note that

is a supplement of

and

is a supplement of

.
Since

,

because
the supplement of the congruent angles are congruent.
Answer:
D
Step-by-step explanation:
I can explain if you need. Write in comments if you do need.