Two classes at Liberty Middle School are setting up imaginary banks for an economics project. Class 1 has $50 in a savings account and makes a $5 deposit each day. Class 2 has $110 in a savings account and makes a $5 withdrawal each day. After how many days will both classes have the same amount of money in their savings accounts?

Select all of the following expressions that are equal to 2.5.

Which will form a composite function?

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.)