QUES: 2 Why dont you join to pepereorg as an administrator for your country

correct the punctuation.

CORRECTED: 2 Why don't you join to pepere.org as an administrator for your country ?

QUES: Last month the United Kingdom issued the Environment Statistical data showed that the 5 years the percentage of textile waste from 7 to 30

correct the punctuation.

CORRECTED: Last month, the United Kingdom issued the Environment Statistical data showed that the 5 years, the percentage of textile waste from 7% to 30%.

QUES: Kopenhagen Art Institute The future role of art criticism

correct the punctuation.

CORRECTED:
Kopenhagen Art Institute: The future role of art criticism?