HELP! with chem or else i'll cry :(?

A 25.00 mL sample of a solution containing NaOH and/or Na3AsO4 and/or Na2HAsO4. (two of the three are present) 21 mL of .0860 M HCl was used to titrate to a phenolphthalein end point. 28,15 mL of .0860 M HCl was used to titrate to a bromocresol green end point. Use this information to deduce the composition of the solution. In addition, calculate the number of milligrams of each solute per milliliter of solution.