You didn'tlist any but anyway

so

so the possible expressions could be

and/or
Answer:
-4
Step-by-step explanation:
Parallel lines have the same slope
If the green line has a slope of -4, then the red line has a slope of -4
I'm sorry I can't help you if it's not in English
Answer:
21
Step-by-step explanation:
Use Pemdas.
Parentesis first so 5+4 = 9 and 8-6=2 so, 9X2=18+3=21
The answer would be 17 17 because it goes up and down by 3.