If a 10 percent deposit that has been paid toward the purchase of a certain product is $80, how much more remains to be paid? Choose the correct choice:	A) $640	B) $680	C) $720	D) $760	E) $800
90% remains to be paid so the remaining amount is 9*80= 
<gadget id="calculator">9*80</gadget>
<output>720</output>
$720.   The answer is $720.
<result>C</result>
If a 10 percent deposit that has been paid toward the purchase of a certain product is $80, how much more remains to be paid?