The proportion would be something like 1.5/10 = .75/5
        
             
        
        
        
Is Jason’s baseball card going up by 2% every year for example
Jason’s baseball card after 1 year is
25×(1.02)^(1)=25.5
It increased by 0.5 in amount after one year
        
             
        
        
        
i do not understand what you are asking help for? 
 
        
             
        
        
        
The answer would be x less than or equal to 3
(same equality symbol you used)
 
        
        
        
Suppose the number is x, its reciprocal is 1/x
x+1/x=13/6
(x^2+1)/x=13/6
6(x^2+1)=13x
6x^2-13x+6=0
(3x-2)(2x-3)=0
x=2/3 or x=3/2