Помоготе)))) (5а-7)*(3а+1)

Пожалуйста помогите!скажите фамилии писателей 19 века:К.Истомин,Крылов,Куприн,Полоцкий,Пушкин,Герасимов,Некрасов,А.К. Толсой,А. Болотов,Даль

школьные.знания.ru найдите углы прямоугольной трапеции, если один из ее углов = 20 градусов

помогите пожалуйста 

 пример:robert asked his mother whether he might take his player to school.

1)what do you in your spare time? charlie asked.....

2)where is the post office? charlie asked.....

3)where did you park your car? charlie asked.....

4)is Ann coming to the meeting ? charlie asked.....

5)where does Jack live? charlie asked.....

6)where can I change some money?charlie asked.....

7)Now old are you?charlie asked.....

8) can you type?charlie asked.....

9) Now you got a driving license?charlie asked.....

10)Why did you come back?charlie asked.....

11) what are you doing now?charlie asked.....

12)where are you living?charlie asked.....

13) are you glad to be back ?charlie asked.....

14)who broke the window?charlie asked.....

15)when is your birthday ?

16) have you finished those reports?

17) when will youdo your homework?

Почему Бальбоа назвал открытый им океан Южным морем?