12 Given the graph of the following system of linear inequalities, which region should be shaded?
(2x + y< -2
12x-3ys-6
Х
A 2
B1
C3
D4

step-by-step explanation:

yes

6x = 48

i hope this . 6 cards each and a total of $48. dvide each side by 6 and you will have your answer.

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

b

step-by-step explanation: