If 5 < x < 9 and y = x + 7, what is the greatest possible integer value of x + y?
Select:  A) 21  B) 22  C) 23  D) 24  E) 25
x+y = x+x+7 = 2x+7   We need to maximize this value and it needs to be an integer.   2x is an integer when the decimal of x is .0 or .5   The largest such value is 8.5   Then x+y = 8.5 + 15.5= 
<gadget id="calculator">8.5 + 15.5</gadget>
<output>24</output>
24.   The answer is 24.
<result>D</result>
If 5 < x < 9 and y = x + 7, what is the greatest possible integer value of x + y?