Answer:
49) 
50) 
Step-by-step explanation:
Use the properties of exponent to reduce this expressions:
a) 
b) 
2x+1>x-(1-x)
2x+1>x-1+x
2x+1>2x-1
1>-1
Any value of x will make this true.
Angle 3 and angle 6 are corresponding angles, which means they are equal. In order for the lines to remain parallel, angle 3 and angle 6 would need to remain equal. If something is done to angle 6, then it would have to be done to angle 3 as well in order to keep the angles equal. So, if angle 6 is doubled, angle 3 would also have to be doubled.
The answer is B. m< 3 would need to double.
Hope this helps =)