I would think this is because yahoo is an accredited website that posts credible and factual info
Around a 60, that’s a lot of math right now
A.
not a, since these civilizations were known for beautiful architecture
B.
true
C.
true, but these are not the only possible forms
D.
true (i think)
....so b and c.... and POSSIBLY d
Answer:
Im not fully sure, but I think that it is a drawing by leonardo da vinci, and it was one of his ideas for a thing kind of like a helicopter.
