Answer:
0
Step-by-step explanation:
The determinant of this matrix is zero (0).
Answer:
The area of A is nine times the area of B.
Step-by-step explanation:
First Multiply 7x2 witch is 14 then divide -90 by 3 witch is -30 so now make your new equation 5+14-30+8-1 witch the answer is -4
I believe it's the first option. Hope this helps.