###Human: There are 50 more pens than notebooks on Wesley's school library shelf. If there are 30 notebooks on the shelf, how many notebooks and pens, does he have altogether?, ### Assistant: If there are 30 notebooks on the shelf, there are 50+30 = 80 pens on the shelf.
Altogether, Wesley has 80+30 = 110 notebooks and pens on the shelf. 
 So the answer is :  110