Suppose you currently consume 10 cups of coffee per week, at a cost of $4 each, at the local Fourbucks.

Suppose you currently consume 10 cups of coffee per week, at a cost of $4 each, at the local Fourbucks. One day you arrive to discover that the coffee shop has changed its name to Fivebucks and is now charging $5 per cup. (Assume coffee is a normal good.) a.