You cannot answer this question without a picture.
Answer:
the total of angle's in traingle is 180
so 85+53+c=180
c=180-138
c=42
Answer:
x = 3
Step-by-step explanation:
6x + 2x - 5= 19
8X -5 = 19
8x = 24
x = 3
if you don't have a Unit Circle, this is a good time to get one, you'd need it, you can find many online.
Check the picture below.