Answer:
Population:stores to purchase a new dress for a dance.
sample: malls near her location. 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
18n-6y or 6(3n-y)
Step-by-step explanation:
3/5(25n-10y+5n)
3/5(30n-10y)
18n-6y
 
        
             
        
        
        
I don't speak Romanian, but the closest translation for this suggests you're trying to compute

Integrate by parts:

where
u = ln(x)²   ⇒   du = 2 ln(x)/x dx
dv = x³ dx   ⇒   v = 1/4 x⁴

Integrate by parts again:

where
u' = ln(x)   ⇒   du' = dx/x
dv' = x³ dx   ⇒   v' = 1/4 x⁴

So, we have





 
        
             
        
        
        
Answer:
35/12
Step-by-step explanation:
2 1/2 is 5/2
1 1/6 is 7/6
Multiply these together to get (5*7)/(2*6) or 35/12.