Rate as BRAINLIEST, if any doubt ask.
7.) -2
8.) 2
9.) -21
10.) 28
11.) -6
12.) 27
13.) -22
14.)-23
15.)-28
16.) 13
17.) 28
18.) 25
19.) >
20.) <
6x * 3y * 9x^2y^4
<span>Simplifying
6x * 3y * 9x2y4
Reorder the terms for easier multiplication:
6 * 3 * 9x * y * x2y4
Multiply 6 * 3
18 * 9x * y * x2y4
Multiply 18 * 9
162x * y * x2y4
Multiply x * y
162xy * x2y4
Multiply xy * x2y4
162x3y<span>5</span></span>
10 1/2 I am pretty sure its right
Neither collinear nor coplanar.
All of the points would have to be on the same line to make them collinear, and they would also have to be on the same plane to make them coplanar. We can see in the diagram that not all of the points are on a line, and that some are at different heights than others.