Answer:
Her average speed is 94 km/h
Time taken is 3.5 hours 
Step-by-step explanation:
Let Evan’s average speed be x km/h.
now since Meghan drove faster, according to the question, we can say her average speed would be x + 6 km/h
Mathematically, time = distance/speed 
so; since time is the same; we have 
308/x = 329/(x + 6)
cross multiply
329(x) = 308(x + 6)
329x = 308x + 1848
329x-308x = 1848
21x = 1848
x = 1848/21
x = 88 km/h
Meghan average speed = x + 6 = 88 + 6 = 94 km/h
Time taken would be 329/94 = 3.5 hours
 
        
             
        
        
        
It's geometry, help him with a problem number of 28 please.
        
             
        
        
        
W-5=5 
W= 5+5 (bringing -5 to the other side, it becomes +5) 
At last, W=10.
        
             
        
        
        
Answer: 23.2  
Step-by-step explanation:
 
        
             
        
        
        
Just count the amount of each letter and write it as a exponent = 3x²y³