Answer:
42
Step-by-step explanation:
SST = ∑
(
y
−
¯
y
)
² (¯
y = mean of y values)
¯
y = (5+8+14)/3 = 27/3 = 9
∑
(
y
−
¯
y
)
² =  (
5
−
9
)
² +  (
8
−
9
)
² +  (
14
−9
)
²
=  (  −
4
)
² +  (  −
1
)
² +  (
5
)
²
= 16 + 1 + 25
= 42
 
        
             
        
        
        
Answer:
he would pay $8,293.5 in income tax.
b: 
Step-by-step explanation: he pays  15.280515891294% of his pay in tax. if the income rate was increased to 21% then he would pay 9,675.75 in taxes.  Which is 1,382.25 more than 18% tax. 
 
        
             
        
        
        
can i see the graph? cant give an  answer unless i got the graph
 
        
             
        
        
        
Answer:
The answer is B. f(x) = (x − 1)(x − 2)(x + 1)(x + 2)