Question

Find the common ratio of the sequence.

–172, –86, –43, –21.5, . . .

Answer 1

Please kindly check out the photo, You'll get your answer there.

Thank you

Answer 2

To find the common ratio, we can divide all the numbers.

-172 / -86 = 2

-86 / -43 = 2

43 / 21.5 = 2

Therefore, the common ratio is 2

Best of Luck!