# What is the algebraic expression for: the product of 8 and a number k is greater than 4 and no more than 16?

$4 < 8 k \le 16$
$8 k$ is the number $k$ multiplied by $8$.
$4 < 8 k$ represents the fact that the product of $8 k$ will be larger than $4$.
$8 k \le 16$ represents the fact that $8 k$ can equal up to the value of $16$ but not more than it.