Nine  stuffed  animals,  all  different,  are  placed  along  a  babies  toy  shelf.    how  many  possible  arrangements  are  there  if:   a)  there  are  no  restrictions.  b)  cookie  monster  must  be  in  the  middle.  c)  bert  and  ernie  must  be  together.  d)  bert,  ernie,  and  oscar  must  be  together.  e)  bert,  ernie,  and  oscar  must  not  be  together.  f)  they  must  not  be  in  alphabetical  order. 

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.