Uh I did not learn this yet but I think The answer is 2,4
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!
A proper subset describes the set in full. An improper subset strays from the original set.
Answer:
D. passive
Step-by-step explanation:
