Предмет: Математика, автор: toxamedni2208gmailc

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Автор ответа: ledyksenon
0

Ответ:

Пошаговое объяснение:

1. Одна седьмая = две четырнадцатых т. к одна седьмая равняется двум четырнадцатых

2 тут тоже равно т. к одна вторая равняется двум четвёртым

Автор ответа: Аноним
0

Ответ: во вложении Пошаговое объяснение:

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What materials were used to make ancient books?
In what places of the world did people have books in ancient?
Where and when was printing invented?
By whom were early libraries used?
When did many public libraries appear?
What old universities have good libraries?
What cities of the world have great libaries?
 
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