For any number z, z* is defined as the greatest positive even integer less than or equal to z. What is the value of 5.2 – 5.2*?
Pick one:	A) 0.2	B) 1.2	C) 1.8	D) 2.2	E) 4.0
Since z* is defined as the greatest positive even integer less than or equal to z, then 5.2* = 4 (the greatest positive even integer less than or equal to 5.2 is 4).   Hence, 5.2 – 5.2* = 5.2 - 4= 
<gadget id="calculator">5.2 - 4</gadget>
<output>1.2</output>
1.2   Answer: 1.2.
<result>B</result>
For any number z, z* is defined as the greatest positive even integer less than or equal to z. What is the value of 5.2 – 5.2*?