扫描二维码，直接登录
题库 / Prep2007E1-PS-138
The cost to park a car in acertain parking garage is $8.00 for up to 2 hours of parking and $1.75 for eachhour in excess of 2 hours. What is theaverage (arithmetic mean) cost per hour to park a car in the parking garage for9 hours?
$1.09
$1.67
$2.25
$2.37
$2.50
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。