Answer:
The last one is your answer :))
Step-by-step explanation:
 
        
                    
             
        
        
        
(- 2, - 3) is a solution to the given system of equations.
Answer: Option D
<u>Step-by-step explanation:</u>
Given equation are not presented in proper format. So, let assume the given system of are as below,
          2 x - y = -1
          2 x -4 y = 8
Now, subtract the second equation from the first, we get
           (2 x - y) -(2 x - 4 y) = -1 -8
           3 y = -9  
            y = -3 (obtained this when divide by 3)
Substituting y = - 3 into the first equation, we get
           2 x - (-3) = - 1
           2 x = - 1 + 3
           x = - 2 (obtained when divide by 2)
Now, the answer is (x, y) = (- 2, - 3)
 
        
             
        
        
        
Answer:
the answer is c 
Step-by-step explanation:
 
        
                    
             
        
        
        
I'm pretty sure it's 50°f because the original temperature is 37°f and after 8 minutes it was 42°f and 42 minus 37 is 5, 8 divided by 5 is 1.6 and then multiply that by 5 is 8 and 42 + 8=50°F
        
             
        
        
        
Answer:
give branliest pls
Step-by-step explanation: