Answer:
-720
Step-by-step explanation:
Answer:
Step 4 is where she made the error.
Step-by-step explanation:
This step is actually known as the commutative property. That property states that we can change the order of numbers as long as we keep the signs and it maintains it's validity.
Answer:
=-42+3-3
=-42-3+3
=-45+3
=-42
Step-by-step explanation:
this is the correct answer
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Rational ! the number doesn't repeat forever or anything like that. it simplifies nicely.
Answer:
60
Step-by-step explanation:
Look at the attachment
