What does it mean to be a medium of exchange? A. The item is divisible and each unit is worth the same.
B. Any item that can be traded for another item.
C. It serves as a valid currency
D. Any item that maintains its worth over time.

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%

attachment?

step-by-step explanation: