Answer:
k = 6x/(w + 1)
Step-by-step explanation:
6x - k = wk
6x = wk + k
k(w+1) = 6x
k = 6x/(w + 1)
 
        
             
        
        
        
Plug in 2.5 for x and you get 
2.5+1 which equals 3.5
        
             
        
        
        
I cant help you there m8 the I'm not able to see the problem I'm sorry.
        
             
        
        
        
Answer:
The change was 18 ° F
Step-by-step explanation:
We know that:
At noon, the temperature in Tempest, California was 78°F
At midnight the temperature is:  60°F.
To find the temperature drop, subtract the temperature of  noon with the temperature at midnight. 

<h3>The change was 18 ° F</h3>