System of equations
3x-2y=8
-2x+5y=-9
x=
y=

2y = 3x - 8

y = 3/2x - 4

Work

-2x + 5(3/2x - 4) = -9

-2x + 15/2x - 20 (+20) = -9 (+20)

-4/2x + 15/2x = 11

11/2x * (2/11) = 11 (2/11)

x = 2

3(2) - 2y = 8

6 (-6) - 2y = 8 (-6)

-2y = 2

y = - 1

final

x = 2

y = -1

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

the answers are in the images, i received 100% on this assignment. hope this !