Mr. Cheeseman takes a taxi home from his shop every Saturday evening. The fare is $2 for the first km, and $0.80 for each additional km. He lives 16 km away. The taxi driver always accepts Mr. Cheeseman's excellent cheese at $20 per kg. The shopkeeper always tips 200 grams of cheese (0.2kg).
How much cheese does the shopkeeper give to the taxi driver?