The cost of 3 kg of sugar is $30. What will the cost of 8 kg of sugar be? Pick one:	A) 20	B) 40	C) 80	D) 160	E) 180
3 kg costs $30   1 kg costs $10   8 kg costs $80   The answer is 80.
<result>C</result>
The cost of 3 kg of sugar is $30. What will the cost of 8 kg of sugar be?