Question 1179179
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(1)  The common difference is  {{{-1/2}}}.  

     The next term is  {{{13/2}}}.               <U>ANSWER</U>



(2)  The third term is  (-8)*2 = -16.     <U>ANSWER</U>



(3)  Neither.                             <U>ANSWER</U>



(4)  Neither.                             <U>ANSWER</U>



(5)  Geometric with the common ratio of 2.    <U>ANSWER</U>
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Solved.