Tickets to a science museum cost $19.95 each. there is a $3 charge for each order no matter how many tickets are ordered. write an expression for the cost (in dollars) of ordering tickets. then find the total cost if you order 5 tickets

Solve this problem! extra ! 3025/5.5 = a/90.75

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.)

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20