One fifth of a thousand is 200
Answer:
Common ratio, r=-3
Recursive Formula

Step-by-step explanation:
The formula for the geometric sequence:
is given as:

<u>Common Ratio</u>
Dividing the next terms by the previous terms, we obtain:

Therefore, the common ratio of the sequence, r=-3
<u>Recursive Formula</u>
We observe that the next term,
is obtained by the multiplication of the previous term. f(n-1) by -3.
Therefore, a recursive formula for the sequence is:

Using proportions, considering the cost of the taxi per mile, it is found that Gary traveled 9.375 miles, not including the first.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
In this problem, the company charges 2.95 for the first mile and $0.3 per each 1/8 mile next = $2.4 per mile. After the first mile, he was charged a total of $25.45 - $2.95 = $22.5. Hence the number of miles is given by:
22.5/2.4 = 9.375.
More can be learned about proportions at brainly.com/question/24372153
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