The Bells are adding a new room to their house. The room will be a cube with volume 4,913 ft3. They are going to put in hardwood floors, and the contractor charges $10 per square foot. How much will the hardwood floors cost?

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%