Mary, alison, and elaine williams have a total of $792 in their savings accounts. alison has twice as much as mary, and elaine has 3 times more than alison. how much do they each have?

Allison is 2(m)                                                          allison has 176 dollars
mary is (m)                                                              mary has 88 dollars
elaine is 3(2m)                                                        elaine has 528 dollars 
 
                               2m+m+6m=792
                               9m=792                                     add all peoples amounts                                                                                                 
                               divide by 9 on both sides          up and you get $792

                           m= 88

21/2 or 5/2