Need help

Part A:

You need to make 500 mL of 0.379 M solution of H2SO4. How many mL should you get out of the stock bottle if the stock bottle is 17.5 M?

Part B:

Imagine you just finished making a solution of HCl that is 3.7 M, but then you notice that it was supposed to be 0.77 M! You figure that you can just dilute it, so if you made 250 mL then to what volume should you dilute it to? (report in ml)