Answer:
(-9,12)
Step-by-step explanation:

Answer:
120°
Step-by-step explanation:
All triangles are equal to 180° so you would subtract the total (180) from the given
No. 9% of 6,342 is 570.78. Rounded, it's close to 600, but not exact.
-√5/2+√5+1
-√5/2+2√5/2+1
√5/2+1
(√5+2)/2