Answer:
C. 8
Step-by-step explanation:
still using the equation a^2 = b^2 = c^2
Answer: 
Step-by-step explanation:
Definitely B. Note how the powers of y are presented in descending order by power: y^8, y^7, y^1.
You're looking for the answers to both X and Y, correct?<span />
Answer:
13°
Step-by-step explanation:
1. the two angles are equal
2. the sum of all the angles of a triangle is equal to 180°
so X+13+154=180
X+167=180
X= 180-167
X=13°