should I retake or not?

Do not retake a class you got a B in.

My school would not even let you retake any class you got a C or higher in anyways, so keep that in mind too because your school do the same.

 

What do you need these calc classes for, anyways? Are you a physics or engineering major?

 

Take classes you can get "A"s in. Your post-bac isn't going to help a lot if you get anything lower than A-

 

I hope that you are kidding. If not, go out and knock down some cocktails, then take two aspirin, and call me in the morning.

 

You shld retake any class you got less than an A in....

 

Who told you that taking math classes to boost your GPA was a good idea? I'd stop that immediately. Be glad a B is the worst that happened.