Chapter R - Section R.1 - Basic Concepts - R.1 Exercises - Page 9: 9

$a=\{ 10,12,14,16,... \}$

Integers are the negative, zero, and positive numbers which include $\{...,-3,-2,-1,0,1,2,3...\}$. Even integers are integers divisible by $2$. Hence, the even integers, $a$, greater than $8$ are \begin{array}{l}\require{cancel} a=\{ 10,12,14,16,... \} .\end{array}