Answer:
5
Step-by-step explanation:
3x5=15 those two numbers are always equal to eachother
Let be the constant factor between terms, so that
and so on, with
(notice how the exponent and the subscript add to )
Then
so if
then
Now,
so the third term in the sequence is 30.
3
6^2=5^2+b^2
36=25+b
36-25=b
B= square root of 9
B= 3
Answer: 73