Answer:
7
Step-by-step explanation:
rate of change of function not necessary mean linear, it can be the slope of a tangent line.
a: y=8x+3    slope = 8
b: rate of change: 1
8-1=7 
I wish this is true...
 
        
             
        
        
        
The distance between the windows is not given. I have searched for this question in other sources and came up with 6.5 ft. 
6.5 ft = 78 inches
The width of the bookshelf  = 77 inches
Hence the book shelf with fit between the windows and still there will be 78-77  = 1 inch of space remaining
Hence the right option is option C
 
        
                    
             
        
        
        
The answer to 14 is 7 because you spent 7 more dollars then you had so that would be negative 7 dollars and an integer to -7 is 7
        
             
        
        
        

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Answer:
20
Step-by-step explanation:
Substitute x in y = 4x for 5. So now the equations stands as y = (4)(5). 4 times 5 equals 20