What is the next term in the geometric sequence -1 -2 -4

-8

Step-by-step explanation:

We must remember that, in geometric sequences, the ratio between the consecutive terms is constant.This is called "Common ratio" and is represented with "r".

We need to find the common ratio of this geometric sequence:

Divide one term by the previous term:

Then, the next term asked in the exercise can be found by multiplying -4 by 2.

Therefore, this is:

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

i got 10.28 but that rounds up to 10.3