Answer:
a = 14
Step-by-step explanation:
The mean is the sum of the values divided by the number of values.

Answer:
4 times
Step-by-step explanation:
You divide 12 by 3
Answer:
C. 
Step-by-step explanation:
Given that A and B are matrices and
is a scalar, then the distributive property of scalar multiplication over addition is given by;

The distributive property of scalar multiplication over subtraction is

The correct answer is C.
Answer:
If you take All of them and add them then you get 262 I dont really understand what your trying to say