A warehouse store sells 3.5-ounce cans of tuna in packages of 8. A package of 8 cans costs $6.72. The store also sells 6.5-ounce cans of the same tuna in packages of 4. A package of 4 cans costs $7.28. The store sells 5.5-ounce cans in packages of 6 cans for $7.26. Which package is the best buy?

Afriend of mine is giving a dinner party. his current wine supply includes 10 bottles of zinfandel, 8 of merlot, and 11 of cabernet (he only drinks red wine), all from different wineries. (a) if he wants to serve 3 bottles of zinfandel and serving order is important, how many ways are there to do this? ways (b) if 6 bottles of wine are to be randomly selected from the 29 for serving, how many ways are there to do this? ways (c) if 6 bottles are randomly selected, how many ways are there to obtain two bottles of each variety? ways (d) if 6 bottles are randomly selected, what is the probability that this results in two bottles of each variety being chosen? (round your answer to three decimal places.) (e) if 6 bottles are randomly selected, what is the probability that all of them are the same variety? (round your answer to three decimal places.)