Question 815752
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Hi,
Let T represent the Total Money
Susan spent {{{(3/8)T}}} of her money 'T' on a bag and 2/5 remainder{{{(5/8)T}}} on a pen. 
Question states***
 {{{(2/5)(5/8)T = 30}}}
           T = $120,  bag cost {{{(3/8)120 }}} = $45