How many stamps do i need for a .9oz envelope?

What is 66 and 1 third percent as a fraction? What is the factor rainbow for 35? Prime numbners between 1-1000? How many square yards is 14' by 14'? What is 12 over 35 times 15 over 16? What is 0.19685039 as a fraction? How do you divide a decimal by a decimal? What is 0.8 percent in fraction simplest form? If your estimated due date is 30 June 2009 how far pregnant are you today 31 March 2009? What is 146x240? What is difference between static block and constructor? Can you make five numbers that are multiples of seven with number cards 0-9? What number goes in 73 and 100? Is 0 the lowest prime number? What does one third plus one twelfth equal? Difference between an unsigned and a signed type? What is 11 over 10 as a mixed number? What is the Highest common factor 48 and 72? Change 4 over 5 into a percent? Moving words - Pizzazz Book E?