A Sale class holds city and units.

Goal

Puts city from a Sale.

class Sale
  def initialize(city, units)
    @city = city
    @units = units
  end
  def city
    @city
  end
  def units
    @units
  end
end
row = Sale.new("Nairobi", 12)
puts row.city
puts row.units

class Kiosk
  def initialize(name)
    @name = name
  end
  def label
    "#{@name} stall"
  end
end
puts Kiosk.new("Mombasa").label

class Sale
  def initialize(units)
    @units = units
  end
  def shillings(price)
    @units * price
  end
end
puts Sale.new(8).shillings(40)

class Sale
  def initialize(city, units)
    @city = city
    @units = units
  end
  def inspect_row
    "#{@city}: #{@units}"
  end
end
puts Sale.new("Kisumu", 5).inspect_row