Answer:
3
Step-by-step explanation:
Exponential equation:
An exponential equation has the following format:

In which a is the value of y when x = 0.
In this question:
When
. Thus, we have that a = 3.
We know
Sum of two interior angles=exterior angle



Hope it helps
Answer:
Second answer is the correct answer
Do you need help with all of them?
Answer: The correct answer is A. because it has only one term
* hope this helps!