Answer:
It depends what the other angles are but you take the two add them together and then you subtract it from 360 (IF ITS A QUADRILATERAL) for all other shapes the angles add up to 180
Step-by-step explanation:
A) 8/9
8 divided by 9 is 0.88888888888888888888889 on a calculator
36°
Unknown Angle = 180° - 88° - 56°
Unknown Angle = 36°
y = -3/2x + 3
ahh pythagoras' theorem, my old nemesis...
The final answer is -18. hope it helped.