Answer:
1 4/35
Step-by-step explanation:
All I did was do 5/7 + 2/5.
Answer:
21.90890230 or 21.91 (I'm assuming you're saying 120/ √30)
Step-by-step explanation:
Yes. It is equivalent to 3. Combine like terms
Well...... It could be forgetfullness on locking a door. Maybe your mom was cooking and she had oil penetrated in her hands, which then reached the door knob. There are many different possibilities, but this question is a little vague. This may be something you have to think about since you are living in your house.
Hope this helps :) Brainliest?