I'm not for sure but I think it might be 4409 to the -6 so 4409^-6. I haven't done these in a while so I might be wrong!
12+12 is 24, 24+24 is 48, and 48+4 is 52. Hope this helps!
20 I think!
Look it up just to be sure
Add seven to both sides of the equal sign. Now you have 3x= -18
Then divide by three on each side. Now you have x= -6
Then plug it in.
-6^2-6(-6)+9
The answer to that is 9