If two numbers x, a perfect square and y, a perfect cube are added results a two digit number, whose digits if reversed, difference is 9, Find x and y ? Choose the most appropriate option:
A) x=4,y=8
B) x=4,y=9
C) x=4,y=7
D) x=4,y=9
E) x=5,y=8
4+8= 
<gadget id="calculator">4+8</gadget>
<output>12</output>
12   when reversed 21   21-12= 
<gadget id="calculator">21-12</gadget>
<output>9</output>
9   x=4,y=8   x=4,y=8NSWER:x=4,y=8
<result>A</result>
If two numbers x, a perfect square and y, a perfect cube are added results a two digit number, whose digits if reversed, difference is 9, Find x and y ?