The answer is the last one, the expression is already in the simplest form.
Answer:
x=130 degree
Step-by-step explanation:
because 50+x=180
=x=130
Answer:
The area is:

Step-by-step explanation:
To find the area of a rectangle, multiply the width by the height (I'll be using x for b, as it is easier when writing the equations):

Answer:
103 = <2
Step-by-step explanation:
Angle 4 and angle 2 are vertical angles and vertical angles are equal
<4 = <2
103 = <2
It would be 19x because it is the same as 19 times x.