Answer:
Step-by-step explanation:
you can think in a reverse way:
Take

So the answer is

Answer:
Yes
Step-by-step explanation:
I've done this before.
Answer:
b/a
Step-by-step explanation:
Given,(b^-2)/a*(b^-3)
or,(b^-2+3)/a
or,b/a
Answer:
1. k
2. 12r-20
3. 10n-13
4. -6x
5. -11r
6. 4x+11
Step-by-step explanation:
Answer:
2
-4
0
Step-by-step explanation:
Just did it