Whats 9+10?

https://www.google.com/#q=9%2B10+%3D

http://www.google.com/#q=9%2B10+%3D

Lol, 21.

If you're serious, the answer is 19.

9 + 10 = 19

So, 21 is incorrect.

To find the sum of 9 and 10, you can simply add the two numbers together. So, 9 + 10 equals 19.