Answer: At midnight It will be -10 degrees
Step-by-step explanation:
 
        
             
        
        
        
Answer: 10 and 11, also -11 and -10
Sqrt 100 is well known to be 10
Sqrt 121 is 11
Step-by-step explanation:
Positive Sqrt is monotone increasing 
So Sqrt 105 is between sqrt 100 and sqrt 121
Second answer
Sqrt 100 is less well known to also be -10
Negative sqrt is monotone decreasing
Sqrt 121 is also -11
Sqrt 105 is also between -121 and -100
 
        
             
        
        
        
Answer:
180 km
Step-by-step explanation:
1 cm=12 km
15 cm=12×15=180 km
 
        
             
        
        
        
Step-by-step explanation:
