Answer:
4
Explanation:
To find the common ratio, divide one term by the term before it.
-20 ÷ -5 = 4
-80 ÷ -20 = 4
Each number is multiplied by 4 to get to the next number.
I hope this helps :))
The common ratio is 4
To find the common ratio take the second term and divide by the first term
-20/-5 = 4
To verify take the third term and divide by the second
-80/-20 = 4
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