Ineed for number 10 through 13 quickly

For number ten, you just need to write ANYTHING literally ANYTHING be it multiplication, division, addition, subtraction, but make sure they are in a parenthesis and you multiply by 0 outside the parenthesis.
example: 0(3+2346)
why? well because anything multiplied by 0 is equal to 0 

11. just substitute X3
8(1)+ 3(6)
8+18=26

12 2+w maybe i don't really know about this one it's been years lol

13. same as ten, but try substituting w for another variable or number, or try changing the 6 for another number, remember it can be ANYTHING as long as you multiply by zero OUTSIDE the parenthesis.

sorry that i wasn't able to help you at all on number 12.

Wouldn't it be 0 since the zero property is anything times 0 is 0

1.34 is the answer I think I’m not sure