очень нужно решить 3 и 5 задание

если от куска материи длиной   метра отрезать пол метра, а именно метра, то длина оставшейся части составит

  метра.

таким образом, для того чтобы отрезать от имеющегося куска   метра нам понадобится, сложить данный кусок материи в четверо

1)фрукты и овощи во первых организму.2)полезны для нервной системы.но я думаю что ты 3 предложения напишешь сама)1)когда ты смотришь телевизор или компьютер у тебя болят после этого глаза.2)  нарушение функционирования некоторых систем организма

mass media (that is, the press, the radio and television) play an important role in the life of society. they inform, educate and entertain people. they also influence the way people look at the world and make them change their views. mass media mould public opinion. millions of people in their spare time watch tv and read newspapers.

everybody can find there something interesting for him. on the radio one can hear music, plays, news and various discussions or commentaries of current events. multiple radio or tv games and films attract a large audience. newspapers are used in different ways, but basically they are read.

there is a lot of advertisment on mass media. some of the tv and radio stations and newspapers are owned by different corporations. the owners can advertise whatever they choose.

but it is hardly fair to say that mass media do not try to raise cultural level of the people or to develop their artistic taste. mass media brings to millions of homes not only entertaiment and news but also cultural and educational programs.

there are more then six tv channels and lot's of radio stations and newspapers now in the russian federation.