Answer:
<em>The algebraic expression will be:
, where
is the number.</em>
Step-by-step explanation:
Suppose, the number is 
Now, "two times the number" means 2 is multiplied with the number. As the number is
, so "two times the number" will be: 
Then "9 more than" means 9 is added. So, "9 more than 2x" will be: 
Thus, the algebraic expression will be: 