Как из формулы S=at^2/2 выразить (а) через s и t

помогите написать рассказ из 10 предложений на тему плюсы жить в деревне. 6 класс

Исправь ошибки :1)  He will helps about the houses .  2) She shall do her homework in the evening . 3) they will buy a new game in afternoon. 4) your little sister ussually goes to the bed at 8 o clock (там запятая есть я незнаю как на кллаве она пишетстся ), doesn t she ? 5)I had the good time there . 6) we shalln t go to school tomorrow . 7) they willn t  play tennis next Sunday . 8) The weather is nice today , is it ? 9 ) Tom was at school , didn t  he ? 10) They went for a walk , don t they ? СРОЧНО!!!!!!!!!!!!!!!!!!!!!!!!