Simplify square roots problem, please show work :)

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

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.

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.