There are two lots of items with different price tags. The first lot costs $490 for 7 items and the other lot costs $520 for 8 items. Which lot is most expensive?
$490 for 7 items
$520 for 8 items
a) Write each price as a rate.
b) Find the unit rate of first lot.
c) Find the unit rate of second lot.
d) Compare the unit rates.