It means they don't want their name or face to be revealed to the public. They may want this to protect themselves and their family.
Answer:
D
Explanation:
The state that appoints the book is in charge of the local education system, so It is critical for the state officials to choose the best, most accurate textbooks to make sure their students are learning correctly.
To Have the world's first crop dusting aerial service.
Answer:
They also used sophisticated mathematical techniques for devising a calendar, for administration, and for accounting. In terms of using mathematics every day, the Egyptians were masters and devised some sophisticated techniques.
Explanation:
