Which of the following is most likely to have a weight of 1/2 ounce?

television
compact disc
book
mailbox

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.