Answer:
The standard form of the quadratic equation is 
Step-by-step explanation:
we know that
The standard form of a quadratic equation is

we have

convert to standard form

 
        
             
        
        
        
B is the answer
B- prices are all higher than 20$ all other of the answer choices are lower than 20$
        
             
        
        
        
The answer to your question is b.
        
                    
             
        
        
        
Answer:
Y = 5x -4
Step-by-step explanation:
You literally just plug the numbers into the equation below: 
y = mx + b.
 
        
             
        
        
        
So these are decmials of the accutal total so 
.32=32%
what makes this question easy is that there are 200 members so to convert the percents into accutall numbers so like .32=32%=64 people (since 200 is 2 times of 100)
A. fiction of 31-40 compared to 21-30
fiction 31-40=.38=38%=76 readers
fiction 21-30=.32=32%=64 readers
76-64=12
A is FALSE
B. so we want to know how many people are 31-40 and prefer fiction
so .38=38% and 38% of 200=76 
B is FALSE
C 43 members are 21-30
so we look at the total row for the 21-30 people and see that .43 or 43% or 86 people are in the 21-30 age group
C is FALSE
D. 140 members prefer fiction
look at the total column for fiction and see that .70 like fiction .70=70%=140 people
D is TRUE
so A,B,C are FALSE
D is TRUE