Answer:
From the information provided you cannot conclude whether or not G-1 is a function. You would need more coordinates in the set to conclude this answer.
 
        
                    
             
        
        
        
Let
x---------> the number
we know that
[9+2x]*4=4x+12
36+8x=4x+12
8x-4x=12-36
4x=-24
x=-24/4
x=-6
the answer is
-6
        
             
        
        
        
Answer:
2/3, or 66.7%
Step-by-step explanation:
There are 2 options for the first digit (3 or 4).
After the first digit is selected, it cannot be repeated, so there are 2 options left for the second digit.
After the first two digits are selected, there is only 1 option for the third digit.
So there are 4 permutations greater than 300.
The total number of permutations is 3! = 6.
So the probability is 4/6 = 2/3.
 
        
             
        
        
        
The weekly earning for the waitress is $475.
Step-by-step explanation:
Weekly salary = $275
Commission = 5%
Worth of dinners served = $4000.00
Amount of commission = 5% of worth of dinners served

Total earned = Weekly salary + Amount of commission
Total earned = 
The weekly earning for the waitress is $475.
Keywords: percentage, commission
Learn more about percentages at:
#LearnwithBrainly
 
        
             
        
        
        
Answer:
( 5, 3/2 )
x = 5
y = 3/2
Step-by-step explanation:
5x - 4y = 19
x + 2y = 8
-------------------
2(x + 2y = 8) = 2x + 4y = 16
----------------------
5x - 4y = 19
2x + 4y = 16
7x = 35
÷7    ÷7
x = 5
-----------------------
x + 2y = 8
5 + 2y = 8
-5          -5
2y = 3
÷2   ÷2
y = ( 3/2 )
I hope this helps!