QUES: Unsure about which type of WBT file you have Do you want to know exactly what it is who created it and how to open it

correct the punctuation.

CORRECTED: Unsure about which type of WBT file you have? Do you want to know exactly what it is, who created it, and how to open it?

QUES: To do this he had to develop not only new mathematical ideas but also he had to develop some of the first computer programs to print graphics

correct the punctuation.

CORRECTED: To do this he had to develop not only new mathematical ideas, but also he had to develop some of the first computer programs to print graphics.

QUES: Popular destinations in Australia Adelaide Canberra Gold Coast Melbourne Perth Queensland Sydney Tasmania

correct the punctuation.

CORRECTED:
Popular destinations in Australia: Adelaide, Canberra, Gold Coast, Melbourne, Perth, Queensland, Sydney, Tasmania