Один острый угол прямоугольного треугольника в два раза больше другого .найдите меньший острый угол .
СРОЧНО !!

укажите слова с буквой о в корне

Решите неравенство

 (3x-1)(4+x)>4(4x-1)

Упростите выражение 7* (2a-4,2)-(4+a) (Плиз срочно)

Упражнение№ 1. Раскройте скобки, употребляя глаголы в Past Simple. Задайте общий вопрос в Past Simple.

1. That boy (learn) English. 2. I (drive) to work every day last year. 3. Laura (make) tea. 4. James (buy) the book about films. 5. We (leave) them at the same place every week. 6. You (put) our bags there. 7. We (see) the same dreams. 8. Mark Twain (write) many books.

Упражнение№ 3. Перепишите следующий текст в прошедшем времени, подчеркнув все измененные сказуемые. On Monday we have five lessons. The first lesson is Russian. At this lesson we write a dictation and do some exercises. Nick goes to the blackboard. He answers well and gets a "five". Pete does not get a "five" because he does not know his lesson. After the second lesson I go to the canteen. I eat a sandwich and drink a cup of tea. I do not drink milk. After school I do not go home at once. I go to the library and take a book. Then I ride home by bicycle.
Заранее спасибо! :*