Answer:
The three sides have the same length.
Step-by-step explanation:
The answer to this is 10.
C=10
Let's plug the value:

Recall that exponent and logarithm are inverse operations:

So, we have

Sooo , 8? Is there more to the question
Answer:
d
Step-by-step explanation:
The sum to n terms of a geometric sequence is
= 
where a is the first term and r the common ratio
Here a = 3 and r = 12 ÷ 3 = 4 , thus
= 
=
= 65536 - 1 = 65535 → d