Answer:

Step-by-step explanation:
See attached file for complete work.
Answer:
b
Step-by-step explanation:
The greatest common factor for 49 and 63 would be 7 since you can divide 7 into both numbers perfectly
-2(3g-4) or -6g+8 one is factoring the expression and one is simplifying the expression
I think they are similar because they are both solving for a certain number (sum, product quotient)