yes i record a cass tape and i have noise all thur the recording can i get some help thanks

If it is low level “tape hiss” you could try the Noise Removal effect.

how do u get all the noise out of the recording

You probably can’t get “all the noise out of the recording” (without also destroying the recording) and this is why people go to great lengths to avoid noise in their recordings.
Here is the Audacity wiki page about what you can do to remove noise with Audacity: Missing features - Audacity Support