Answer:
It would be rounded to $5.90 per gallon. As if something is 5 or above you round up and if it is 4 or less you round down.
 
        
             
        
        
        
Answer:
 Some people advise that in very cold weather, you should keep the gas tank in your car more than half full. Irene's car had 6.1 gallons in ... in your car more than half full. Irene's car had 6.1 gallons in the 15 gallon tank on the coldest day of the year. Irene filled the tank with gas that costs $3.80 per gallon.
 
        
                    
             
        
        
        
The equation that passes through these points is x = 4
        
             
        
        
        
Set a porportion: 60/50=x/20 and solve for x=24