molarity questions

[Kdawg]

What is the molarity of each resulting solution when the following mixtures are prepared?

553.6 mL H2O is added to 20.0 mL 4.79 M HNO3

20.8 mL 1.75 M HCl is added to 80.0 mL 0.534 M HCl

[FZ+]

Come on! This isn't very hard if you give a moment's thought...

1 M = 1 mol per dm^3

1 dm^3 = 1000 ml

Calculate the number of moles in each case, making the appropiate conversions, and divide by the total volume of solvent.