Making change In a certain country, there are three kinds of coins: (4) Making change (a) In a certa

Making change

In a certain country, there are three kinds of coins:

(4) Making change (a) In a certain country, there are three kinds of coins: 62, 22c, and 33C coins. Assume that vendors and customers always have an unlimited supply of all these coins. Are there any prices that a customer cannot pay exactly if the vendor gives change? Explain (b) Same situation, but the government has stopped producing and reclaimed all coins. Now are there any prices that a customer cannot pay exactly (vendors still giving change)? Explain.