Answer:
UNKNOWN
Step-by-step explanation:
STOP OR I SHALL KI** YOU 
 
        
             
        
        
        
Answer:$27
Step-by-step explanation:
x-27=0
0+27=27
27-27=0
 
        
             
        
        
        
Answer:
The father is 50 and his son is 15.
Step-by-step explanation:
Double the tens digit of the father's age = 10
Plus 5 = 15 (the age of the son)
50 + 15 = 65 (the sum of their ages)
The reverse of the digits of the son's age is 51.
Subtract 1 = 50 (the age of the father)
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
When iron reacts with air and water, it forms Iron (III) oxide, also known as rust, which is reddish-brown.
 
        
                    
             
        
        
        
Step-by-step explanation:
.
.
.
.
.
..1
1
1
1
1
2
2
2
3
3
3
34
4
4
45
5
5
5
56
6
6
5i d
s 
6