Answer is 2x^+3x-3 with reminder 4
        
             
        
        
        
Answer:
80, every 5 percent is 4 people. So every 25% is 20. 20 x 4 is 80.
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
   3
Step-by-step explanation:

 
        
             
        
        
        
<span>Uphill distance = 1 4/5 = 9/5 = 18/10 km
Downhill Distance = 2 7/10 = 27/10 km
Total Uphill and Downhill = 18/10 + 27/10 = 45/10 = 4.5 km
Hence total level ground = Total race km - (Uphill + Downhill)
=10 - 4.5 = 5.5 km
Hence the answer is 5.5 km.</span>