The cost to park a car in a certain parking garage is $9.00 for up to 2 hours of parking and $1.75 for each hour in excess of 2 hours. What is the average (arithmetic mean) cost per hour to park a car in the parking garage for 9 hours?
Options
A) $1.09	B) $1.67	C) $2.25	D) $2.36	E) $2.50
Total cost of parking for 9 hours = 9$ for the first 2 hours and then 1.75 for (9-2) hours = 9+7*1.75= 
<gadget id="calculator">9+7*1.75</gadget>
<output>21.25</output>
21.25   Thus the AVERAGE parking price= 21.25/9 = 2.36 $   $2.36 is the correct answer.
<result>D</result>
The cost to park a car in a certain parking garage is $9.00 for up to 2 hours of parking and $1.75 for each hour in excess of 2 hours. What is the average (arithmetic mean) cost per hour to park a car in the parking garage for 9 hours?