A bag contains tiles with letters on them spelling the word BANANA. A tile is removed, taken note of, then replaced. Another tile is then drawn. Find the probability that a) the first time was a B and the second tile was an N. b) the first time was an N and the second tile was an A.

720

Step-by-step explanation:

This is a permutation, since order is important (in other words, banana is not the same as bnanaa).

Since there are 6 letters, we find this using 6! (factorial):

6(5)(4)(3)(2)(1) = 720

13

step-by-step explanation:

divide the cost of the total of sodas you bought by the cost of one soda, for example:

$24.57 divided by $1.89 is 13 which means you bought 13 sodas