Please don't understand math. THANK YOU!!!! I just don't get it

9 Answer:
Two numbers, 4 and a, have a geometric mean of 12.
Find the value of a.
10 Answer:
Two numbers, 3 and a, have a geometric mean of 9.
Find the value of a.
15 Answer:
Find the distance between the two points:
(5,8), (2,4)
16 Answer:
Find the distance between the two points:
(7,12), (1,4)

20 Answer:
Find the midpoint between the two points:
(2,2), (6,4)
21 Answer:
Find the midpoint between the two points:
(2,3), (4,1)
22 Answer:
A company had sales of $500,000 in 1996 and sales of
$720,000 in 1998. Use the midpoint formula to find the
company's sales in 1997.

9. (4+a)/2=12 a=20
10. (3+a)/2=9 a=15
15. 5
16. 10
20. (4,3)
21. (3,2)
22. $610000

9 Answer: a = 8
10 Answer: a = 6

I hate doing the distance, so somebody else can figure those out for you.

20 Answer: (4,3)
21 Answer: (3,2.5)

Not doing 20.

Ok. I promise I won't understand math anymore.

As you wish, Sir.
I will no longer understand math.

haha ^^

i couldn't even answer that if i tried :S