A parking garage rents parking spaces for $15 per week or $30 per month. How much does a person save in a year by renting by the month rather than by the week? Select:	A) $140	B) $160	C) $220	D) $420	E) $260
10$ per week!   An year has 52 weeks.   Annual charges per year = 52* 15= 
<gadget id="calculator">52* 15</gadget>
<output>780</output>
780$   30$ per month!   An year has 12 months.   Annual charges per year= 12 * 30= 
<gadget id="calculator">12 * 30</gadget>
<output>360</output>
360$    780 - 360= 
<gadget id="calculator"> 780 - 360</gadget>
<output>420</output>
420   Ans $420
<result>D</result>
A parking garage rents parking spaces for $15 per week or $30 per month. How much does a person save in a year by renting by the month rather than by the week?