Answer:
A
Step-by-step explanation:
all we need to do is to plug the point (6,4) in the inequality and see if it satisfies it :
pay attention that here we have x=6  y=4 
4<
we simplify we get :
4<4.5-3  
4<1.5  which is incorrect  so (6,4) is not a solution. moreover
 notice that 4 is > than 1.5  so the point lies above the line 
thus the answer is : A 
you can also solve this problem by graphing the line 
 and plotting the point (6,4)  and hence you will notice that the point is above the line
  and plotting the point (6,4)  and hence you will notice that the point is above the line 
 
        
                    
             
        
        
        
Answer:
To  get system B, the SECOND equation in system A was replaced by the sum of that equation and the FIRST equation multiplied by FOUR. The solution to system B IS de same as the solution to system A
Step-by-step explanation:
x-y=3  equation 1
-2x+4y=-2   equation 2
so, multiplying by four the equation 1 we have
4x-4y=12   equation 3
later sum equation 3 and equation 2 we have
2x=10
 
        
                    
             
        
        
        
Answer:
She drew the graph too steep, if she is going down at a constant rate of 300 ft per hour, at 1 hour she would be at 2,700 ft. it would take her about 10 hours to get down the mountain.
 
        
             
        
        
        
Answer:
90 people are expected to but cotton candy.
Step-by-step explanation:
The answer is 90 because 360 divided by 8 is 45 and 45 multiplied by 2 is 90.