Question 1180371
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I respect your unlimited curiosity, but ask you post ONE and ONLY one problem per post,  
in accordance with the rules of this forum.



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<H3>One and ONLY ONE problem/question per post.</H3>


It is the RULE, &nbsp;the &nbsp;POLICY &nbsp;and the &nbsp;REQUIREMENT &nbsp;of this forum.


It is written in this page


https://www.algebra.com/tutors/students/ask.mpl?action=ask_question&topic=Equations&return_url=http://www.algebra.com/algebra/homework/equations/


from which you post your problems.



It is assumed that you read these rules before posting.


It is also assumed that you do understand what is written in that page and follow the rules.



Those who violate them, &nbsp;work against their own interests.



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Ok, you may ask 2 - 3 closely associated questions, but asking 5 (five) is just tooooooooooooooooooooooooooo much.