If the average of 10,11,12,13,14,15,16,17,18 and x is 23, what is the value of x?	Choose the correct option.
A) 90 B) 89 C) 123 D) 104 E) 110
Given (10+11+12+13+14+15+16+17+18+x)/10=23   126+x/10=23   126+x=230   x=230-126= 
<gadget id="calculator">230-126</gadget>
<output>104</output>
104   Answer is 104
<result>D</result>
If the average of 10,11,12,13,14,15,16,17,18 and x is 23, what is the value of x?