Which greek mathematician wrote the most definitive text on geometry, one that is still referred to today?

What is the volume of a rectangular prism if the length is 10.4 mm the width is 5 mm in the height is 8 mm

The collection of beautiful oil paintings currently on display at an art gallery well defined; set not well defined; not a set

Alocal hamburger shop sold a combined total of 601 hamburgers and cheeseburgers on friday. there were 51 more cheeseburgers sold than hamburgers. how many hamburgers were sold on friday? a local hamburger shop sold a combined total of hamburgers and cheeseburgers on friday. there were more cheeseburgers sold than hamburgers. how many hamburgers were sold on friday?