A.) The temperature rises 10 degrees over 3 hours. 
(To explain my reasoning is because at 0 hours the temperature was 30 then at 3 hours the temperature moved up to 40 and at 6 the temperature moved to 50 which means every 3 hours its moving up 10 degrees)
        
                    
             
        
        
        
10/4= 2.5
5/2.5= 2
2 would be your first answer
32x2.5= 80
80 would be your second answer
Hope this helped
        
                    
             
        
        
        
Answer:
It's 4800, just multiply 60x80 bc the population is 80x larger than the sample of 100
 
        
             
        
        
        
The answer is A) 6:15, because if you divide both numbers by three, it'll give you 2:5
        
                    
             
        
        
        
Eq1
Y intercept -2,0
X intercept 0,2
 Slope 1 
Eq2
X intercept-2,0
Y intercept 0,2 
Slope 1