8. make sentences using the given words in the correct order:
1. but, we, mean, also, computers, we, quantity, and, high speed, when, a further development of, high technology, speak about not only.
2. electronic circuits, and, in laboratories, reliable, for more perfect, throughout the world, is going on, high speed, a continuous search).
3. operates, the ordinary computer, all, operation by operation, are being done, the supercomputer, does, simultaneously, the computations, operations, while, like a brain.​

пусть расстояние от зареченска до азс х км, тогда расстояние от азс до ивантеевки 7х км. составим уравнение: х + 7х = 800 

                                                        8х = 800

                                                            х = 100

от зареченска до азс 100 км пути. т.к. расход бензина на 100 км составляет 9 л, а бензина имеется 10 л, следовательно машина доедет до азс и еще 1 л бензина останется.

Hello, Tom!

Thank you for your letter, it's always great to receive it. In your last letter you told me about your school and asked me some questions. 

I had to change schools and it wasn't such as easy as anyone might think, it was hard to me to communicate with my new classmates, but later I get along with them.

Firstly, it seemed really unsolvable for me to make friends, but now I have a lot of friends from different classes at our school. 

I think that school uniform is very useful, because it prepares us for our future. At work we must wear an official uniform and we won't have any choice.

Sorry, but I must finish now. I have a lot of work to do.
Hope to hear from you soon,
__ (твое имя).