What is the smallest positive integer x such that 80-x is the cube of a positive integer	Select:
A) 16  B) 12  C) 47  D) 9  E) 12
Given 80-x is a perfect cube   so we will take 64= 4*4*4   80-x = 64   x =80-64= 
<gadget id="calculator">80-64</gadget>
<output>16</output>
16   correct option is 16
<result>A</result>
What is the smallest positive integer x such that 80-x is the cube of a positive integer