Please find concentration of diluted sample AND mg if aspartame

Zeljka investigated if there was something going on in her analyses. She dissolved the contents of an equal packet in a 50mL volumetric flask and took out 210mL aliquots and placed each aliquot into separate 50mL volumetric flasks. She added 10.00mL of a 3.50mg/L aspartame standard to the second one. Both were diluted to the line with deionized water. Analysis revealed that the second one had an absorbance of 0.044 and the first one had an absorbance of 0.022. What is the concentration of the diluted sample and how many mg of aspartame were in the packet