Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Cristian has 50 more black cookies in his cookie jar than white cookies. He eats half of the black cookies and 3/4 of the white cookies. If he initially had 80 white cookies, how many cookies are remaining within the cookie jar altogether?

### Response:
 Cristian anakula 3/4 * 80 = <<3/4*80=60>>60 biskuti nyeupe, 3/4 ya idadi ya biskuti nyeupe katika kopo.
Idadi ya biskuti nyeupe zilizobaki katika kopo ni 80-60 = <<80-60=20>>20 biskuti nyeupe.
Katika kopo lake la biskuti, Cristian pia ana biskuti nyeusi 80+50 = <<80+50=130>>130.
Anakula 1/2 * 130 = <<1/2*130=65>>65 biskuti nyeusi, 1/2 ya idadi ya biskuti nyeusi katika kopo.
Idadi ya biskuti nyeusi zilizobaki katika kopo ni 130-65 = <<130-65=65>>65 biskuti nyeusi.
Kwa jumla, Cristian ana biskuti 65+20 = <<65+20=85>>85 zilizobaki katika kopo.