Сколько штук строительного кирпича размером 25*12*6.5 см допускается перевозить на автомашине грузоподёмностью 3 тонны? p=1800кг/м3

Объем одного кирпича = 25*12*6,5=1950 см³

Плотность 1800 кг/м³ = 1,8 г/см³

Масса одного кирпича = 1950*1,8=3510 г или 3,510 кг

3000/3,510=854,7

ответ: перевозить можно 854 шт курпича

First of all I want to tell you that my best friend's name is Irina and she is 15. She is the best person I have ever met. A few  words about her appearance. Her height is nearly 149 cm. But she'd like to be a bit taller. Well, she is not slim but she is not fat either.  Irina has a round face as everyone has, a bit long nose and big cheerful grey eyes. Her skin is a bit pale but she likes this fact, she doesn't like ruddy faces. She has no freckles as my friend Nina has. Her forehead is open. I think Irina has a charming smile.  Her hair isn't very short but it's not long either. It is straight and black. Iuina has rich hair. I think that she looks like her father. Irina is very active and creative, cheerful and curious. But the best thing is that she is reliable. We spend much time together. We go for a walk, we play tennis, watch TV, do things which we like. I love my friend.    
Прежде всего, я хочу сказать вам, что мою подруг зовут Ирина и ей 15. Она самый лучший человек, которого я когда-либо встречала. Несколько слов об ее внешности. Её рост около 149 см. Но она хотела бы быть немного выше. Ну, она не худенькая, но и не толстая.
У Ирины круглое лицо, как и у всех, немного длинный нос и большие радостные серые глаза. Ее кожа немного бледная, но ей это нравится, она не любит румяные лица. У  нее нет веснушек как у моей подруги Нины. Ee лоб открытый.  Я думаю, у Ирины очаровательная улыбка. Ее волосы не очень короткие, но это не длинные. Они прямые и  черные. У нее густые волосы.
Я думаю, что она похожа на своего отца. Ирина очень активная и творческая, жизнерадостная и любознательная. Но самое главное - она надежная. Мы проводим много времени вместе. Мы ходим гулять, играем в теннис, смотрим телевизор, делаем вещи, которые нам нравятся. Я люблю мою подругу.

ABOUT THE RIVER ULITA

On the anonymous small river flowing into Tuloma, there lived once with the family in old веже the Sami the fisherman.
They lived well, didn't take in head to deliver yet to the fisherman new, spacious I see on the beautiful high coast of the small river.
When вежа it was put, the wife of the fisherman became spill and shavings to dump in water. The fisherman saw it and speaks:
— Don't throw shaving into water!
And itself I went to the wood behind firewood.
The wife didn't listen to the husband, dumped all garbage in water and cleared the hill.
Shavings departured down.
In those days the gang of Swedish robbers wandered down the river to Tuloma. Was their hundred people. They noticed the fresh shavings floating on water, went upstream, saw a smoke from new big knit and came to the high coast. Lodged in веже.
The senior from gang began to live with the wife of the fisherman, and to the daughter the others asked in marriage.
When the owner came back from the wood, robbers seized him and tied to a tree for the night — threatened to kill him if he where there live Sami doesn't tell.
There was no wish to die to the Sami. He saw the daughter who followed water, and asked it to untie ropes. The daughter answered the father that is better to live her with mother and with newcomers, than with the father,
And when the small son ran out on the street, the father asked it for the help, and that agreed. In the evening the boy remained to play on the street and when all fell asleep, approached to the father, untied ropes and released it.
Having come to be on freedom, the owner took the sword thrust in the earth which Swedish robbers wanted to behead him, entered in I see and finished with them.
The wife and the daughter were released by the Sami.
Since then Tuloma's this inflow also name Ulita, by the name of wives of the Sami.