как расположена северная америка относительно экватора тропиков и нулевого меридиана

Раскройте скобки, поставьте глагол в нужной форме.

1. If you (to give) me your address, I shall write you a letter.

2. I should be very glad if he (to come) to my place.

3. If he did not live in St. Petersburg, we (not to meet) so often.

4. You will never finish your work, if you (to waste) your time like this.

5. Your brother (to become) much stronger if he took cold baths regularly.

6. If she (to ask) me yesterday, I should certainly have told her all about it.

7. If he is not very busy, he (to agree) to go to the museum with us.

8. If it (to rain), we shall have to stay at home.

В классе 37 человек.Докажите, что из них найдутся хотя бы 4 человека, родившиеся в один месяц.

уравнение а) 0,2t+1,7t-0,54=0,22 б) 5,6z-2z-0,7+2,65=7