If she rides her bike 18 km per hour 
then it will take 4 hours to travel 72 km (72÷18)
the answer is 4
        
             
        
        
        
Decimal form: 18.8
Mixed number: -18 4/5
Exact form: -94/5
        
             
        
        
        
From the graph, we can actually see that as the altitude increase, the
value of the pressure decreases. Or if we say it the opposite way, as the
altitude decreases (approaches sea level), the pressure increases, therefore
the answer is:
 
As the altitude approaches sea level, the atmospheric
pressure increases.
 
        
             
        
        
        
Answer:
x=4, 3/2
Step-by-step explanation:
3(x-4)(2x - 3) = 0
Using the zero product property
x-4 = 0    2x-3 =0
x=4           2x = 3
                     x = 3/2