Serial dilutions problem has two parts a and b. Please provide explanations thank you!

A. How would you prepare the following standard concentrations, 750, 500, 275, 250, 200, 175, and 125 g/ml. Final volume of 2ml for each concentration

B. How would you prepare 1000 g/ml solution of BSA (solid)? How much would you prepare in order to have enough to make your serial dilutions and have some left of your 1000 g/ml as one of your standards? To determine this, you need to do part A first.