Which matrix represents b-a

a= 3 -12 b= 4 5

-6 5 -1 8

9 -2 -7 6

a) -1 -17

-5 -3

16 -8

b) 1 -7

-7 3

2 4

c) 1 7

5 3

-16 8

d) -1 -17

7 -3

2 -8

Graph the following system of linear inequalities. identify at least two points in the solution: y < 5 - 2x | x + 5y > -7

Who ever answers this will get a cookie from batman

Points j and k plotted on the coordinate grid are two vertices of rectangle jklm rectangle jklm has an area of 7 square units point j is located at 2,1 and point k is located at -5,1 each vertex of the rectangle is located at a point that has integer coordinates. what is the perimeter of rectangle jklm? (need answer asap)