Question 1026703
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The earth is made up of four primary layers: the inner core, outer core,mantle and crust. 
The outer core is more than 800 miles and less than 2200 miles from the Earth´s center. 
Which of the following inequalities represents all possible distances ,¨d¨, in miles, from the Earth´s center 
that are in the outer core?


a) |d+800|<2200
b) |d-800|<2200
c) |d+1500|<700
d) |d-1500|<700
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Option d).