GCF and LCM and Polygon problems.

1. Find the GCF of 100 and 1000.

2. Find the LCM of 100 and 1000.

3. Find the prime factors of 2002

4. Prove that 97 is a prime number.

5. List all the prime numbers which s less than 100

6. Find the GCF of 36,27, and 45.

7. How many multiplies of 7 are there between 100 and 200 ?

8. When n is divided by 5, the remainder is 1. what is the remainder when 3n is 
   divided by 5 ?

9. A stor sold 72 decks of cards for $a67.9b. Find a+b.

10. Find the prime factors of 1441.

11. Find teh solution to: (x)x = -5x -6.

12. Find the solution to: x=28/(x-3).

13. What is the positive difference of the roots of (x)x - 7x -9 ?

14. Find all values of z such that z/(z-1) = (z+1)/z -2

15. Find all pairs (a,b) such that 2a+b=12 and ab=3.

16. Which is larger, 7/17 or 9/19 ?

17. Express the 0.36363636... in fraction lowest term.

18. express the 0.23838383838... in fraction lowest term.

19. If the diagonal of a square is 8, what is its area ?

20. Find teh area of a rhombus with a side of 13 and one diagonal of length 24.

21. Prove the pythagorean theory.

22. Fidn the number of diagonals that can be drawn in a polygon of 100 sides.

23. Find the area of a regular dodecagon if its circumscribed circle has a 
    circumference of 12 pi.

24. Find the ratio of the area of a circle inscribed in a regular hexagon 
    to the area of the circle circumscribed about the same hexagon.

25. Find the number of sides in a regular polygon which ahs interior angle
    measure 162 degree.