This is the version of the English language that is regarded as the model in America for writers and speakers who are considered educated.

Standard American English.

Explanation:

'Standard American English' is characterized as the variety of English language that is contemplated as the standard or model for all the educated writers as well as speakers in America. This is the standard of English language that is followed uniformly in entire United states. All the professional communication, schools, colleges, etc. in America substantially accepts, recognizes, and adopts this model and its phonology, grammar, punctuation, etc, without any flaw. Thus, 'Standard American English' is the correct answer.

7

explanation:

it depends on what grade.

kindergarten to senior year in high school will go for about 7 hours. pre-k will go for bout 4-5 hours. college, it depends on your classes.