The last one: the arc AB is a semicircle.
a semicircle is 180 degrees
Answer:
x = 2
Step-by-step explanation:

Answer:
mean:6, median:6, mode:5 and 6,
Step-by-step explanation:
Mean is average, mode, is the number that occurs most frequently, median is the middle number.
Answer:
The range would be increased by 2
3,5,5,5,6
The range for that set would be 3.
If 8 were added... 3,5,5,5,6,8
The range for that set would be 5.