Attached is the solution.
The following log properties are used:

Answer:
Explanation:
The question is: given that the first term is
and the recursive definition is
, what would be the second term (i.e.
)
A recursive defintion or recursive formula is an equation (a rule) that you apply over a term to find the next term, and so you can use it repeatedly to find the successive terms of a series.
In this case, your rule is that you multiply each term by 3, starting from 5.
Thus:
- First term:

- Second term = 3 × first term :

Hence, your answer is 15 (the fourth choice).
The answer to 3-(-4) is 7.
You would need to use the pythagorean theorum which is would be 8 squared +x squared = 15 squared
Defining variables
let n1 be the first number
n2 be the 2nd number
add them together, you get 218
n1+n2 =218
n1 is 47 less than n2
n1=n2-47
do some substitution
n2-47 +n2 = 218
solve for n2
then use n2 to figure out n1