I had 30 donuts when I left home this morning but only 9 when I came back home. What percentage of the donuts are missing?	Select the correct option.
A) 70  B) 65  C) 55  D) 75  E) 60
30 - 9= 
<gadget id="calculator">30 - 9</gadget>
<output>21</output>
21   21/30 or 7/10   7/10= 70/100 = 70%   70nswer is 70
<result>A</result>
I had 30 donuts when I left home this morning but only 9 when I came back home. What percentage of the donuts are missing?