*urgent*

use a matrix to find the solution to the system of equations.

x-5y = -5
-4x-2y = 20

a. (-5,-5)
b. (-5,0)
c. (0,5)
d. (-5,5)

B. (-5,0)

Step-by-step explanation:

-2(X-5Y=-5)            -5(-4X-2Y=20)

-2X-10Y=10    -subtract-     20X-10Y=-100  = -22X=110

                                                                           -22X

                                   X=-5

Now substitute x with -5 to find Y which makes y=0

answer: 20

step-by-step explanation:

company a

step-by-step explanation:

using the linear regression models , it is found that company a   pays about $14 more. but using the same regression (linear) company b pays about $10 more.

so company a pays more than b