This shape is a Rectangle because the sides aren’t even
        
             
        
        
        
Answer:
See below 
Step-by-step explanation:
Grade is slope =  rise / run
a) horizontal distance 1400 ft  (run)     vertical distance = 40 ft  (rise) 
         40 / 1400 = 2.85%
b)   rise / run  =    805.58 / 13780 = 5.84% 
 
        
             
        
        
        
Answer:
Step-by-step explanation:
a|c means that c=a*k k is some positive integer. We know that b|c so b| ak and (a,b)=1, so it must be b|k, i.e k=b*r, r is some positive integer number. Now we have that c=abr, so ab| c.
B) if x and x’ are both solution then we have that 
mi | x-x’ for every i.
By a) we have that m1m2...mk| x-x’, so x and x’ are equal by mod od m1m2...mk.
 
        
             
        
        
        
<span>50.4a is the answer to solving the equation
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It is really easy it is 6