Devin wants to buy a new game system that cost $481.68, including tax. He has already saved $225 from mowing lawns. Devin will walk the neighbor’s dog for 4 months to save the remaining amount of money needed to purchase the game system. He will earn the same amount of money each month. How much money must Devin earn each month to save the exact remaining amount needed?

Atown has a population of 12000 and grows at 3.5% every year. what will be the population after 7 years, to the nearest whole number?

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.)

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?