I haven't done these problems in a really long time, so there's a chance that my answer might be wrong. I hypothesize that the correct answer is C.
'is' means equals
'of' means mutily so
we have
18 =0.4 times what
divide both sides by 0.4
45=what
the answer is the number is 45
answer for this question is 1/16
For the given geometric sequence, we have:

So the correct option is B.
<h3>
Which is the recursive formula?</h3>
Here we have the geometric sequence:

To get the initial value of the geometric sequence, we just need to replace n by 1, so we get:

Now, notice that the common ratio is (-1/3), this means that each term of the sequence is (-1/3) times the previous term.

Then the correct option is B.
If you want to learn more about geometric sequences:
brainly.com/question/1509142
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