you have to multiply by -3
so the answers are going to be one negative one positive
and the next 5th terms are 108,-324,972,-2916,8748

well, when x = 0, namely at the very beginning, y = 27, thus, that IS the initial value.
It belongs to the square root family. Your answer is B. Why the square root family? Because

can be written as

When you raise to 1/2 or 1/3 it is like saying the square root or the cube root.
We can use two different methods to find our missing angle:
Subtract the two known angles from 180° :
Plug the two angles into the formula and use algebra: a + b + c = 180°