Answer:
7/9
Step-by-step explanation:

Answer: to #3 is no it is not a function
Step-by-step explanation:
Answer:
A. The value of u should be 115 because the two angles shown in the figure are congruent.
Step-by-step explanation:
You can see the placement of the angles and their relationship, which is corresponding angles. This makes them congruent.
hope this helps! :)