Question 394263
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Hi, Noted:  8 boxes sold on 2nd day
Let x represent  the total number of boxes of cookies
1st day sold (2/5)x  OR .4x
2nd day sold 8
question states***sold 45% of boxes the first two days
 .45x = .4x + 8
solving for x
   .05x = 8
      x = 8/.05
      x = 160 boxes, the total number of boxes of cookies
  55 % are left, there are .55*160 = 88 boxes left to sell