Answer:
70 degrees
Step-by-step explanation:
The angle opposite x and x itself are vertical angles, meaning that they have the same angle measure. Since the sum of the interior angles of a triangle is 180 degrees:
x+55+55=180
x+110=180
x=180-110=70
Hope this helps!
D because you have to use absolute value to solve.
Answer:
21+3r
Step-by-step explanation:
(7+r)3
3*7= 21
r*3= 3r
21+3r