If x=1/7, which expression has the greatest value?	Choose the correct choice:
A) x^(1/3)
B) x^(1/2)
C) 1/(2x)
D) x/.03
E) x^(-3)
Options A and B are both less than 1.   Option C: 1/(2(1/7)) = 7/2= 
<gadget id="calculator">7/2</gadget>
<output>7/2 = around 3.5</output>
3.5   Option D: (1/7) / 0.03= 1/0.21 which is about 4.76   Option x^(-3): (1/7)^(-3) = 7^3 = 343   The answer is x^(-3).
<result>E</result>
If x=1/7, which expression has the greatest value?