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

step-by-step explanation:

20% of 120 is 24. if you subtract 24 from 120 you get 96

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6