The store bought an IPad for $900 and sold it for $1200. What percentage was
the mark-up?

answer: The mark up percentage was 25% because if you find how much 900 is of 1200  which is 75% and subtract it by 100% which is 25%. To check your work you can multiply 25% *  1200 which equals 300 then add 300 to 900 which Equals 1200.

Just add the two numbers and it will give the answer 2100:

6. 104

7. 52/37

8. 2704

9. 140608

10. -52

11. |52|=52

12. 1/52

13. 156

14. 26

15. 40

16. 37

17. -364

18. 53 1/3

19. 50.96

20. 43 2/3

21. 78

22. 50.75

23. 47.63

24. 163.28

25. 10400

26. 338

27. 208

28. 2704 square inches

29. 312 square meters

30. don't know what its asking, tell me so i can tell you

31. 8490.56

32. 52 degrees would be an acute angle

33. 128 degrees

34. 20.8

35. 39

36. 208