Answer:
the equilibrium price is 6 and units sold is 10
Explanation:
In the case when we eliminate all the jacks, queens, aces and kings we have a total of 36 card that left with the numbers from 2 to 10
also there are 18 red card of sellers and 18 black card of buyers
Now the following table should be prepared
Price Quantity demanded Quantity supplied
2 18 2
3 16 4
4 14 6
5 12 8
6 10 10
7 8 12
8 6 14
9 4 16
10 2 19
As we can see that at the price of 6 the quantity demanded would be equivalent to the quantity supplied
So, the equilibrium price is 6 and units sold is 10