8 liters is the same as how many gallons? round anwer to the nearst tenth

Asign featuring a red circle and red line crossing over an image

Which of the following is a polynomial with roots 3,5i, and -5if(x)=x^3-3x^2+25x-75f(x)=x^3-3x^2+15x-25f(x)=x^3-15x^2+25x-75f(x)=x^3-3x^2+15x-75

During bad weather, you should travel_the posted speed limit.