Find the common ratior r for the geometric sequence and use r to find

the next three terms. - 3, 9, - 27, 81,

r = - 3

Step-by-step explanation:

to find r divide the 2nd term by the first:

9 / - 3 = - 3

to check if this is the same ratio for each number divide it by the ratio to get the number before it:

-27 / - 3 = 9

81 / - 3 = 27

to find the next three terms multiply the last number by the ratio then repeat

(81) (-3) = - 243

(-243) (-3) = 729

(729) (-3) = - 2187

It happens to be 7 i think