Which of the following is equivalent to 5^-9

What is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.

You have a square piece of cardboard that measures 14 inches on each side. to build a box, you cut congruent squares out of each corner of the cardboard. use the picture to find the area of the cardboard you were used to build the box

Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?