Chapter 4 - Writing Linear Functions - 4.6 - Arithmetic Sequences - Exercises - Page 214: 12

$45,56$ and $67$.

Each term is $11$ more than the previous term. So, the common difference is $11$. Add $11$ to a term to find the next term. The next three terms are $34+11, 34+2(11)$ and $34+3(11)$. That is, $45,56$ and $67$.