Answer: 0.05699
Step-by-step explanation:
The total number of cards in a deck = 52
The total number of black cards = 26
Then ,
The total number of face cards = 12
Then , 
The number of cards that are black and face cards = 6
Then , 
Then , the probability that a randomly drawn hand of four cards contains all black cards or all face cards is given by :-

What the person above said
Answer:
Calculate the number of whole years it takes for the population to decrease from 2180 to less than 1000-by-step explanation:
Answer:
1
Step-by-step explanation:
1+1=2
1-1=0
you can do this the hard way by doing a system of equations
or the easy way by guessing and checking