math
posted by KaiCin on .
Find the next two numbers in the folowing pattern: 12,500,2500,,500,100
PS:12,500 is pernounced Twelve thousand five hundred.
Find the mean of the folowing integers: 5,7,12,10,15. Also:16,27,21,19,14,3 Sorry about the extra work.

"pernounced" is pronounced "pronounced."
#1: each number is .2 times the previous one.
#2. the mean is just the sum divided by how many there are:
(5,7,12,10,15)/5 = 3
(16,27,21,19,14,3)/6 = 5