On a map of a city, the scale is 1 centimeter to 500 meters. if it is 4 kilometers between city hall and the library, how many centimeters is it on the map?
a) 8 cm
b) 125 cm
c) 2,000 cm
d) 80 cm

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b?