If -4 < x < 7 and -7 < y < 3, which of the following specifies all the possible values of xy? Choose the correct choice from the following options: A) -42 < xy < 21 B) -49 < xy < 24 C) -28 < xy < 18 D) -24 < xy < 21 E) -24 < xy < 24
The least value of xy is a bit more than 7*(-7)=-49 and the largest value of xy is a bit less than (-4)*(-6)= 
<gadget id="calculator">(-4)*(-6)</gadget>
<output>24</output>
24.   Therefore -49 &lt; xy &lt; 24.   Answer: -49 &lt; xy &lt; 24.
<result>B</result>
If -4 < x < 7 and -7 < y < 3, which of the following specifies all the possible values of xy?