Answer:
c
Step-by-step explanation:
What? Need answers. Plus, I can tell that your are doing this in class. Bad idea.
For the first question the answer is
X=-9 or X=10
First you factor the left side of the question
(X+9)(X-10)=0 then u set factors equal to zero
X+9=0 or x -10=0
X=-9 or X=10
Now for question two is the second bubble of answer
<span>An arithmetic sequence is a sequence with the difference between two consecutive terms constant. The difference is called the common difference.<span>A geometric sequence is a sequence with the ratio between two consecutive terms constant.</span></span>