240 for # 2 because 6 times 4 times 10 is equal to 240
I am still working on others
First blank: Substitution or transitive property of equality
Second blank: Subtraction property of equality
Answer:

Step-by-step explanation:
We start off with 3.2n + 13.3 = 26.1.
We need to get n by itself.
Subtract 13.3 from both sides.


We end up with: 
Divide 3.2 on both sides to get n by itself.

Answer:
7.1
Step-by-step explanation:
um i think yolo