ALL MULTIPLE CHOICE. Read instructions on the photo.

Question 1
(0.5) and (8.2)?
Answers:
-8/3
-3/8
-5/8
3/8

Question 2
(2,-1) and (6,1)?
Answers:
1/4
-1/4
-1/2
1/2

Question 3
(-3,-2) and (-1,-5)?
Answers:
3/2
-3/2
2/3
-2/3
Answer all plsss

Name the most appropriate metric unit for each measurement like a length of an carrot

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?