Your answer would be x=-10.5
First distribute -2/3 to 3x and -9
-2x+6=15
Then subtract 6 from both sides 
-2x=9
Divide both sides by -2
x=-4.5
        
             
        
        
        
Tenemos precio de lista de $25 para el libro.
Si aplicamos un descuento del 25%, este descuento representa:

Ahorramos $6.25.
El precio que pagamos el libro es $18.75.
 
 
        
             
        
        
        
Answer:
We have strong evidence that on average, students study less than 150 minutes per night during the school week
Step-by-step explanation:
Normal distribution:
mean     μ₀ = 150 
Sample:
Sample size    n = 272 
Sample mean   x = 141
Sample standard deviation  s  = 66
The standard error of the sample mean  SE = σ /√n
SE = 66/√272
SE = 66 / 16,49
SE = 4
Test Hypothesis:
Null hypothesis                            H₀             x  =   μ₀ 
Alternative hypothesis                Hₐ            x <    μ₀
z(s)  test statistics is:
z(s)  =  ( x  -  μ₀ ) / s/√n
z(s) = - 9 /4
z(s) =  -  2,25
p-value  for that z(s)      p-value  = 0,0122
Then for α =  0,05 p-value < 0,05
We are in the rejection region we need to reject H₀
 
        
             
        
        
        
Y equals 5 over 7x minus 5
        
             
        
        
        
Answer:
The inequality 14
Cecil had 14 boxes of lightbulbs when he started
I think not 100% sure 
Step-by-step explanation:
Hope this helps :)