f(x) = 112 - kx
 f(-3) = 112 - k(-3)
 f(-3) = 112 - (-3k)
 f(-3) = 112 + 3k
  121 = 112 + 3k
- 112  - 112
      9 = 3k
      3     3
      3 = k
        
             
        
        
        
If the volume is 343 cubic cm the length of each side is 7cm.
        
             
        
        
        
Answer:
m<A=97
m<B=97
Step-by-step explanation:
m<A=m<B
Congruent angles and they are vertical angles. The other two are also the same because the angles given have the same degrees. 
m<A is supplementary to 83 degrees
Supplementary angles are two angles that sum up to 180 degrees. 
 
180-83=97
97 degrees is the answer for each missing angles.