T is greater than -15 because numbers after -15, like -16... are less than -15, so when its decreasing it gets lower. Since the questions says the temp stayed above -15, that means the temp could be -14...-13 and so on.
        
                    
             
        
        
        
Answer:
x+6
Step-by-step explanation:
 
        
                    
             
        
        
        
Yes because the thermometer reads temperatures higher than 2.12 degrees