Need help in finishing the excercise for my java class

1: Solve the following problems. a) Blood flow to the fetal spleen is of research interest because sev- eral diseases are associated with increased resistance in splenic artery. Researchers have found that the index of splenic artery resistance in the fetus can be described by the function y = .057x-.0012,2, where is the number of weeks of gestation. At how many weeks is splenic artery resistance a maximum? b) Let f(z) = pr2 + 6x + m-1. Find k and n if this quadratic function has a vertex at (