Answer:
Step-by-step explanation:
Area of trapezium = 
h ---> altitude.
a and b are the parallel sides of the trapezium.
Simplified to its simplest form would be 15/4. The GCD of them all would 400, so you divided them by 400.
Answer: I see two people typing, so...
Step-by-step explanation:
Answer:
1( first page of volume 1) + 900 (900 book of 100 pages) + 1 (last page of the book)