Answer:
Change: subtract old value from new value. Example: You had 5 books, but now have 7. The change is: 7−5 = 2. Percentage Change is all about comparing old to new values.
Step-by-step explanation:
hope this helps :)
Answer: 
Step-by-step explanation:
You need to use the following formula:
Where "r" is the radius and 
is is the central angle of the arc in radians.
Assuming that that the angle 
is the central angle of the arc, and knowing that the radius is 7 centimeters, you can substitute values into the formula.
Therefore, you get:
The number is 1
1 + 1 = 2
2(2) = 4
1 is your answer
hope this helps
Answer:
1. both boxes 3
2. both boxes 7
3. both boxes 5
4. both boxes 2
5. top box 12 bottom 18
6. top box 9 bottom box 11
7. top box 42 bottom box 60
8. top box 4 bottom box 5
