Question

What's -3+(0+9) ?? I need to know by tonight

Answer 1

The answer is 6.
To do this, remember PEMDAS? 
You would first have to add what is in the parenthesis THEN do -3 + 9 to get 6. 

Answer 2

-3 because you would ignore 0 since u would replace whatever is infront of the + with a 1, 1 and 0 makes 0, 1 x 9 = 9. then you are left with -3(9) you divided -3 and get -3. -3 x -3 = 9