4 + 2x = 12
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Take away 4 from both sides:
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2x = 8
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Divide by 2 on both sides:
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x = 4
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Answer: x = 4
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The system has one solution so it's 
A. consistent and independent.
 
        
             
        
        
        
He will have a 1/531,441 chance of winning next week.
There are 10 balls in each container; for 6 containers, this gives us 10^6 = 1,000,000.  There is 1 correct combination of balls, so his chance the first week is 1/1,000,000.
The second week, 1 ball is removed from each container; this will give us 9^6 = 531,441 chances.  There is 1 correct combination, so he will have a 1/531,441 chance of winning.
        
                    
             
        
        
        
Answer:
The answer to your question is the third choice
Step-by-step explanation:
To solve this problem, just multiply 6 by each of the numbers of the matrix and simplify.
             6   |  4  -2  1 |   =   | (6 x 4)   (6 x -2)   (6 x 1) |  
                  |  7   3   0|        | (6 x 7)   (6 x 3)    (6 x 0) |
                                     =   | 24   -12   6 |
                                          | 42    18    0 |
 The first choice is wrong because only multiply by six the first row.
The second and fourth rows are incomplete.
 
        
             
        
        
        
Answer: $2.67 per person 
Step-by-step explanation: Well hello again, so the question said two of his friends had an emergency now there are three people left going to New York including Eric himself. So, the equation is 8 ÷ 3 = ?. Now we solve the equation 8 ÷ 3 = ? which is $2.67.