Let n = number
" product of 3 and a squared number" translates to 3n²
"sum of the number and 4" translates to n + 4
The word "is" becomes your equals sign. 
3n² = n + 4 is your equation. 
        
             
        
        
        
Answer:
√17 or 4.12 inches
Step-by-step explanation:
√9²-8²=√81-64=√17 inches
or 4.12 inches
 
        
             
        
        
        
50 - 5n = 15
if you need to find the number n then
50 - 5n = 15
-5n = -35
  n = 7
        
                    
             
        
        
        
Answer:
144322221111155554444444333222222
 
        
             
        
        
        
Answer:
D I think
Step-by-step explanation: