WILL GIVE BRAINLIST and please explain how you got the answer

What is the slope of the line through (-1, 4) and (1, -2)?
6-1.44
3
-3 2
-1
2.
3
4
1
-2
(1.2)
-3
O A. 3
O B. 1/3
O c
O c. - 1/3
O D. - 3

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

The students in a class were asked how many siblings they have. the data obtained is represented in the dot plot. the number of students who have no siblings is . the number of students who have three or more siblings is .