SVER You are looking at a potential location to open your first spa. The rent is $21 per square foot
(annually), and the space is 1,800 square feet. How much rent would you pay each year? Each
month?

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?