A chemist must dilute

Question

55.5mL
of
2.80
M aqueous nickel(II) chloride
NiCl2
solution until the concentration falls to
2.00
M . He'll do this by adding distilled water to the solution until it reaches a certain final volume.

Answer 1

Your method of posting makes it difficult to read. Also, you don't ask a question but if you want to know how much is the final volume use the dilution formula.
mL1 x M1 - mL2 x M2
55 x 2.80 = mL2 x 2.00