Initial(1-markdown)
387.50(1-49%)=197.625
final answer: $197.63
        
             
        
        
        
Answer:
70kilometers
Step-by-step explanation:
first we must find how much one half of a centimeter is
well, its easy, theres already a half for the distance, and the representation is an even number, so cut it in half.
20-10 is 10
and now the multiplication 
20x3=60
60+10=70
70 kilometers 
 
        
             
        
        
        
For the first one, we add 2.7 to both sides to get x≥13. Next, we divide both sides by -0.84 to get x≥ 168/-0.84. SInce we multiplied or divided by a negative number, we switch the sign around and end up with x≥200
        
             
        
        
        
Angle b corresponded to angle a
        
             
        
        
        
D. The answer has to be 2,000, eliminating A and C. B doesn't even use the original equation, as well as incorrectly solving the method, so D is the correct answer, even if you don't understand the principles.