Step-by-step explanation:
Part A
-2 -2+7=y y= +5 y=5
-1 -1+7=y y= 6
0 0+7=y y= 7
1 1+7=y y=8
2 2+7=y y=9
Answer:
i think is y>X
90° - COD
Because if it's complementary, the mystery angle and COD add up to 90°
