Answer:
1. x = 21
2. m∡ABC =  51°
Step-by-step explanation:
First problem, solve for x
the sum of inside angles of a triangle is 180
also the supplementary angle for L = 180 - 100 is 80° 
now you can add all angles
80 + 2x - 11 + 2x + 27 = 180
4x + 96 = 180
4x = 84
x = 21
Second problem, solve for m∡ABC
the sum of inside angles of a triangle is 180
also the supplementary angle for C = 180 - 148 is 32° 
now you can add all angles
31 + 2x - 15 + x - 5 = 180
3x + 12 = 180
3x = 168
x= 56, 
now solve for  m∡ABC = (x - 5)° = (56 - 5)° = 51°
 
        
                    
             
        
        
        
Answer:
0, 4
Step-by-step explanation:
 
        
             
        
        
        
Answer:
-12
Step-by-step explanation:
6 ÷ -1/2
Copy dot flip
6 * -2/1
-12
 
        
             
        
        
        
Answer:
The median is 17 and the mode is 19
Step-by-step explanation:
 
        
             
        
        
        
I don't know when I solve it I got 4,003.5 inches