Answer:
6
Step-by-step explanation:
I'm not positive I know the answer, but I have a feeling that because it's asking that you select all that apply, there is more than just one answer.
x + 3 = 0
-3 + 3 = 0
So yeah, just basically solve them as individual problems. Just do additive inverse for each expression.
Answer:
is it from a textbook
Step-by-step explanation:
There are a total of 900 students at Molly’s school. 810 is 90% of 900. 90% of students did not wear a silly hat.
Answer: 5x(x+3)
Step-by-step explanation: hope this helps