Answer:
42 books
Step-by-step explanation:
The ratio percent for nonfiction is 0.78% 
You multiply the amount of book by the percent that is nonfiction which give you the answer of 42.
54(0.78) = 42 
 
        
             
        
        
        
Answer:
1/45
Step-by-step explanation:
There are 10 marbles
P ( yellow) = yellow marbles / total = 2/10 = 1/5
We do not replace the marble
There are 9 marbles, 1 of which is yellow
P ( yellow) = yellow marbles / total = 1/9 
P ( yellow, no replacement, yellow) = 1/5 * 1/9 = 1/45
 
        
                    
             
        
        
        
A slope of 3 means the gradient is 3 so we get y=3x+c as derived from the linear formula. we then sub in x=2 and y=-0.5. this gives us c=-6.5.
The equation would be y=3x-6.5
I think this is right.
        
                    
             
        
        
        
Answer:
eight people drink 6 glasses of water
Step-by-step explanation: