Answer:
84
Step-by-step explanation:
 
        
                    
             
        
        
        
D. because for every hour it goes down 5 degrees and since there is a 1 hour gap in between 7 am and 9 am 
        
             
        
        
        
Answer:
Step-by-step explanation:
try https://www.mathpapa.com/calc.html?q=y%3D2x+1 for faster answers next time
 
        
             
        
        
        
I am not sure if you gave all of the information but if you did A because A > B. Did I miss something?