10x +4 </ 25 (the </ is a less than or equal to sign)
        
             
        
        
        
25 percent of x is equal to $1631.24
.25*4 is equal to 100 percent
Substitute 
1631.24*4=x
x=6524.96
        
             
        
        
        
Answer:
Initial Amount=1
Decay Factor=0.99987
Decay Rate=0.013%
Step-by-step explanation:
If P = 0.99987ᵃ
I. Initial amount 
The initial amount is when a=0
P = 0.99987⁰ = 1
The Pressure at Sea Level=1
II. Decay factor 
This is like the decay constant. From the model, P = 0.99987ᵃ, the decay constant/factor is 0.99987.
III. Decay Rate = 1-0.99987 = 0.00013
Expressed in Percentage = 0.013%
 
        
                    
             
        
        
        
Hellooooo!! Marie Here!!!
The answer is here: 
The value of "x" is 9
<h3>Hope This Helps!!! Have A GREAAATTTT Day!!</h3>