Long enough to make it clear you have read and understood what was written to you and the answer or information the writer wanted .
So that there is a written record of complaint, response, and if the complaint involves an employee (with the employee responding internally to the company), how the employee will revise his/her actions to comply with policies or standards.
Maureen Sullivan Bogdanowicz has written: 'Reader response to technical writing'
Patricia Ellen Simon has written: 'An exploratory study of the relationship between reading response and syntactic writing maturity' -- subject(s): Reading, Writing
This is an impossible question to answer. There are entire textbooks written and lengthy courses given on this subject. It is impossible to synopsize them for an answer on this venue.
In legal terms, a respondent is a party in a legal proceeding who responds to a petition or claim filed against them by another party. The respondent typically provides an answer to the allegations made against them and may present their own evidence and arguments to the court.
Stephen McDonald has written: 'Baker 30' 'The writer's response' -- subject(s): College readers, English language, Grammar, Report writing, Rhetoric
Alex Copello has written: 'Responding to addiction in the family'
Douglas Cogan has written: 'Responding to global warming'
P. H. Scholfield has written: 'The theory of proportion in architecture' -- subject(s): Architecture, Composition, proportion
Peter Hugh Scholfield has written: 'The theory of proportion in architecture' -- subject(s): Architecture, Composition, proportion
Malibu by Hole written by Courtney Love, Cobain's wife, in response for him writing Heart Shaped Box for her.
a proportion is an equation written in the form