Answer:
Expanded: (y-3)(y-3)(y-3)
Simplified: 
Step-by-step explanation:
Expanded: (y-3)(y-3)(y-3)
Simplified:



Step-by-step explanation:
Matrix has 5 rows and 3 columns.
So it's order is 5x3.
Answer:
The answer is -10 because a negative plus a positive is negative
Answer is -10
Step-by-step explanation:
That would be the last choice. Opposite meaning different sign