Answer: hello there here are your answers:
8) B multiplication property of zero
9) C additive identify
1) 8
2) -2a-7
Step-by-step explanation:
1) 
2)
Answer:
I can't understand.. can you add pictures also
Answer:
7
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
x - 9 = 11
+9 +9
x = 20
Answer:
There is no slope
Step-by-step explanation:
When finding the slope both numbers have to be positive without positive numbers you will not have a positive slope there fore no slope