<h2>
Answer:</h2>
n = 1
<h2>
Explanation:</h2>
Here we have the following Geometric Sequence:
Where:
The first term occurs when 
. Next the second term occurs when 
, the third term when 
and so on. Therefore, the appropriate value of n that lies on the domain for n is
I think that x would equal 1.5 :)
Answer:
z = 0
Step-by-step explanation:
3 (z + 7) = 21
3z + 21 = 21
3z = 0
z = 0
