Help please I don’t understand

For what value of (y) is 3^3/3^y =1/9

Factor the expression using gcf 9b+45

Which question is not a good survey question? a.don't you agree that the financial crisis is essentially over? 63on average, how many hours do you sleep per day? c. what is your opinion of educational funding this year? d.are you happy with the availability of electronic products in your state?