Abook vendor is trying to sell his booking collection. one customer buys 1/4 of his books , another buys 1/3 of his books ,and a third buys 1/6 of his books. if the vendor is left with 15 books , how many did he start out with ?

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

Can someone me with my math problems i have a bunch. i will give brainliest and lots of pleeeaaasssee

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.)