Answer:
30
Step-by-step explanation:
since the 2 sides are congruent, the two angles are congruent, so
75+75+ x= 180
150+x=180
x=30
Answer: 25%
Step-by-step explanation:
184-138= 46
184*.25=46
Answer:

Step-by-step explanation:
Given

Required
Determine x2, y2
Start by splitting the expression
and 
Solving for x2 in 
Multiply through by 2


Make x2 the subject;

Similarly:

Multiply through by 2


Make y2 the subject;

Hence:

Answer:
2x(x+1)(x-1)(x+3)(x-3)
Step-by-step explanation:
0.26 * 1/10 = 0.026
because 1/10 = 0.1
0.26 * 0.1 = 0.026