Suplementary is angles add up to 180 degrees
C=180-D
C=180-84
C=96 degrees
Hope this helped :)
Answer:
4.) 12
5.)1.67
Step-by-step explanation:
3x - y = 10 . . . (1)
-x + y = 12 . . . (2)
(1) + (2) => 2x = 22 => x = 22/2 = 11
From 2, -11 + y = 12 => y = 12 + 11 = 23
Answer:
98 years
Step-by-step explanation:
because the sun is 432,690 miles