вырази в квадратных метрах: 1км2-(25га-97а)

Найдите массу 1 м2(в кв метре) сплава , если слиток этого сплава , имеющий форму прямоугольного параллелепипеда с измерениями 2,9 дм,15 см и 0,8 имеет массу 281,88 кг

Нужно исправить ошибки:

1. A group of people has crossed the Atlantic in the ship "Mayflower" and settled at Plymouth in 1620.

2. Westminster Bridge is a bridge across River Thames.

3. Big Ben and Houses of Parliament stand beside the River Thames.

4. Denny said quick: "I agree, i'll do it tomorrow."

5. Can you come to my house at 3 o'clock? It's important.

-Ok. I'm going to be there at o'clock.

6. Have you ever met David? No? I'm sure you are going to like him.

7. Few days later everything was ready.

8. He hard heard her words.

9. She could hardly believe her eyes. It was nothing in the bag.

10. There is something that i want to say the teacher.