Answer:
A
Step-by-step explanation:

well, when x = 0, namely at the very beginning, y = 27, thus, that IS the initial value.
Answer:
540°
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
Here n = 5, thus
sum = 180° × 3 = 540°
See attached picture for answre