Some engines require oil to be mixed with gasoline. for every gallon used 4 ounces of oil should be added. how much gas is needed if 12 oz of oil are used?

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

Is this a polynomial function? i need to know asap

What is the solution to the division problem below x3+x2-11x+4/x+4