The additive inverse of something is whats added to the original to get 0
So in this case n - n = 0, which is B :)
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
t a pet store, Ms. Pike paid $34.75 for 5 dog bowls and 7 bones. Mr. Moore paid $20.50 for 3 dog bowls and 4 bones. Determine the cost of one dog bowl(x) and one bone(y).
 
        
             
        
        
        
Answer:
FH ~ 10.02
Step-by-step explanation:
1. Approach
One should first find the circumference of the given circle. Then one should find how large the fraction of the circumference one is supposed to find is. Finally, one should multiply the fraction of the circumference one is supposed to find by the total circumference.
2. Circumference of the circle
The formula for circumference is;
 π
π
Substitute in the given values;
It is given that the radius is, hence
 2 (7) π
14π
3. Find the fraction of the circumference one is supposed to find
It is given that the angles over the measure of the total degrees of angles in a circle are equal to the arc surrounding the angles of the circumference. Essentially;

Substitute in the given information and solve;

arc = 
arc = 
arc ~ 10.02
 
        
             
        
        
        
Answer:
3.28
Step-by-step explanation:
find the mean of all the numbers 
3 + 8 + 10 + 12 + 15 = 48 
48/5=9.6 
so the mean of all the numbers is 9.6 
now subtract 9.6 from all the numbers
|3 - 9.6| = 6.6
|8 - 9.6| = 1.6 
|10 - 9.6| = .4
|12 - 9.6| = 2.4 
|15 - 9.6| = 5.4 
Find the mean/average of the new values
6.6 + 1.6 + .4 + 2.4 + 5.4 = 16.4
16.4/5  = 3.28