Answer:
3.25 pounds
Step-by-step explanation:
x + 4 (1/2) + 3 (1/2) = 11
x + 4.25 + 3.5 = 11
x + 7.75 = 11
x = 11 - 7.75
x = 3.25 pounds
 
        
             
        
        
        
Are you missing an option? The answer should be -2/3 (I just calculated it numerous times)
        
             
        
        
        
I'm not sure what you mean, but if you mean 15 and 1/20th, you just multiply 15 by 20 and add one which is 301 and keep the denominator
        
             
        
        
        
F (x) = 5(4) ^x Is the right answer