I need help, there is that’s

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.

X-10/4 when x = –18 a 7 b –2 c –7 d 2

Typically a point in a three dimensional cartesian coordinate system is represented by which of the following answers in the picture !