Answer:
C, -2
Step-by-step explanation:
-4x + 7 = 2y - 3
-4x + 10 = 2y
-2y = 4x - 10
y = -2x + 5
 
        
             
        
        
        
1 out of 52. So 1/52 equals some decimal. Plug in calc. 
 
        
             
        
        
        
Answer:
2 dimes, 1 nickel and 3 quarters.
Step-by-step explanation:
The price of 2 postcards is $1. Any combination of coins that adds to $1 will work here. Remember, a penny is worth 0.01, a nickel is worth 0.05, a dime is worth 0.10, and a quarter is worth 0.25.
Adding 2 dimes, 1 nickel, and 3 quarters would be 2(0.10)+1(0.05)+3(0.25)=1.
 
        
             
        
        
        
The variability measures the closeness of the individual data provided. So, the most reliable sampling is the one with the lowest variability. 
For this case, the question with the lowest sampling variability is question 3. Therefore, we can conclude that the answers to which of the questions are most reliable is question 3. 
        
             
        
        
        
Answer:
Look on the internet , It's easy