Answer:
demographers
Explanation:
as they are experts in the study of statistics relating to the changing structure of human populations.
Well to find this out you need to make an equation
s+7=j
So for example if Johnny's sister is 15 then Johnny would be 22 because
s(sister's age) +7(number of years difference between their ages)=22(Johnny's age)
Answer:
B
Explanation:
There are 7 billion people in the world and we approached that number in 2011.
Answer:
Explanation:Pictorial Sketches • A Pictorial drawing is a view of an object as it would be seen by an observer who looks at the object either in a chosen direction or from a selected point of view. • Pictorial drawings often are more readily made and more clearly understood than are front, top, and side views of an object