Answer
$0.1$ more than the product of $13$ and $p$.
Work Step by Step
The product of 13 and $p$ expresses the multiplication of $13$ and $p$ in $13p$.
$0.1$ more than expresses the addition of $0.1$ to that term.
Therefore, $13p+0.1$ can be written as "$0.1$ more than the product of $13$ and $p$."