For this case we must raise an inequality.
We have "d" dollars initially and they are spent 12. Then:

At least 51 dollars remain, then, the sign of inequality is greater or equal in favor of the expression , that is:
, that is:

Resolving:

There are at least 63 dollars left in the account.
Answer:

 
        
             
        
        
        
2/15==x/60
Multiplly
60*2= 120
now divide
120/15= 8
x=8
        
             
        
        
        
Answer:
B
Step-by-step explanation:
 
        
             
        
        
        
Ounces would be in the denominator of your ratio.
Converting ounces to pounds you would simply divide by 16 :)
Have a great rest of your day! Good luck!
 
        
             
        
        
        
Answer:
y + 51 ≥ -240
Step-by-step explanation: