Answer:
B. 50
Step-by-step explanation:
total angle of triangle = 180⁰
hence,
25 + 105 + x = 180
x = 50
therefore ans is B. 50⁰
25+105+x=180 degree(being sum of the interior angles of a triangle)
130+x=180
x=180-130
x=50 degree
7 and -7
the result is : 14x + 27
