Answer:
Not possible.
Step-by-step explanation:
Addition of Matrix A and Matrix B is possible only if the order of matrix A is same as the order of matrix B.
Order of a matrix with  rows and
 rows and  columns is
 columns is  .
.
Here, matrix A is ![\left[\begin{array}{ccc}2&-4\\-4&10\\0&-8\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D2%26-4%5C%5C-4%2610%5C%5C0%26-8%5Cend%7Barray%7D%5Cright%5D)
Matrix B is ![\left[\begin{array}{ccc}0&-4&6\\2&-10&4\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D0%26-4%266%5C%5C2%26-10%264%5Cend%7Barray%7D%5Cright%5D) .
.
Multiplying a matrix by a constant doesn't change its order.
So, order of matrix A is  as it has 3 rows and 2 columns.
 as it has 3 rows and 2 columns.
The order of matrix 3B is  as it has 2 rows and 3 columns.
 as it has 2 rows and 3 columns. 
Therefore, addition is not possible as the order is different.
 
        
             
        
        
        
Step-by-step explanation:
Total Cost = 25a + 15b + 10c
 
        
             
        
        
        
Answer:
2b + 4c = 800
c > 100
Step-by-step explanation:
 
        
             
        
        
        
Answer:
7.2 
Step-by-step explanation:
Distance between (4, 3) and (8, 9):




 (nearest tenth)
 (nearest tenth)