Use PEMDAS.
Parenthesis first.
(-15)-(-12)+3-(-9)
Next multiply,
(-15)+12+3+9 (two negatives get you a positive)
Finally, add and subtract:
-15+24=9
You get 9 as your answer.
Hope this helps!
Answer:
Diameter = 12 ft.
Step-by-step explanation:

Hope this helps!
(::)
brainliest?
The correct answer that i came up with is D
Answer:
10 minutes
Step-by-step explanation:
This is because if u have both the faucet and drain on at the same time, it will fill the tub faster