При растворении 10 г соли в 90 г воды образуется:

а) 10%-ный раствор воды;

б) 10%-ный раствор соли;

в) 12%-ный раствор соли;

г) 20%-ный раствор

Упростить выражение: (x-3)(x-7)-2x(3x-5)

Сочинение на тему Моя будущая профессия-дизайнер. Плиз очень надо, предложений 10-15

6. Change the following sentences into reported speech.

1. Jack said to his father, “I have lost my watch.”

2. Henry said to him, “I didn’t throw stones at your dog.”

3. Bob said to Tom, “Henry doesn’t sit next to me in class.”

4. Mary said, “I don’t want to wear my old dress.”

5. My friend said to me, “We have plenty of time to do our work.”

технические новшества 19 века доклад(окр.мир)