до обеда выгрузили семь десятых зерна,находящегося в товарном вагоне . сколько тонн зерна было в вагоне , если выгрузили 42 тонны

Помогите,  пожалуйста, перевести прямую речь в косвенную!
 1.The doctor said to Pete: "Don't go for a walk today."
2. "He had his last exam yesterday", said Tom. 
3.My mother said "I was cooking  at 6 p.m."
4.Teacher said : " Show me the capital of Russia"
5.Mike said " I have never been to Russia"
6.My friend asked me: "Where  do you go for your vocation?"
7. The manager said :" Have you cleaned the swimming pool?"
8. My uncle said :" We shall visit you next week".
9. "I took a very good book", said Mike to his father.
10. Job interviewer asked: " What's your name?"

А1. Найдите производную функции:             

 а) х5+2х;               б) 12х6 - 45;