Скорость лодки при движение по течению реки равна 18,4км/ч,а против течения -16,4км/ч.Сколько км пройдет лодка за 4 часа, двигаясь по озеру.НАДО ДО ЗАВТРА!!!

Поставить глаголы в правильную форму:

1)I am writing...(to inquire) about your advertisement in the May edition of "Around The World" magazine. 

2) I am interested in ...(to visit) Italy and would be grateful if you could...(to send) me further details.

3) Your advertisement states that the price includes a return flight from Borispol Airport. Will the flight ...(to leave) in the morning or in the evening?

4) Will I ...(to have) my own room or will I have ...(to share)? In addition, ...(to regard) the meals that the price includes, I'd like...(to know) if all meals are included in the full cost or if the price only includes breakfast.

5) Finally, could you...(to tell) me whether the tour includes...(to visit) Vatican and if there will be time to go ...(to shop).

6) I look forward to...(to hear) from you. Thank you in advance for your help. 

Напишите превращения

NaBr -> Na -> NaOH -> Na3PO4 -> Ag3PO4