Answer:
The answer to your question is
or 
Step-by-step explanation:
Expression 
Process
1.- Change the division to a multiplication

2.- Factor


3.- Simplify (cancel the terms that are repeated in both numerator and denominator)

or 
Answer:
C, D, A
Step-by-step explanation:
Distributive property
Combining like terms
Communitive property
The answer is C. c=47+21.
Answer: slope(m) for this= 2
m=2