You see, that's where you're wrong.

The factors of 9 are 3 and 3. The factors of 10 are 5 and 2.
Multiply 5x3, you get, you get 15. Multiply 3x2, you get 6.
6+15=21, see? 9+10 can mathematically equal to 21.

YES MORE EVIDENCE TO SHOW THE NON-BELIEVERS!

possibly 19

LIES

might be 19 doe

Omg what 😰

wow who knew that it was 19 all along

: 0

I thought was -671