Which explanation correctly solves this problem?

chris was putting a railing on his deck. at the end of the day, he had 11.5 feet of railing left over. during the day, he had used two 1.5-foot-long piece of railing, one 3.25-foot-long piece of railing, and one 6-foot-long piece of railing.
how many feet of railing did chris have at the beginning of the day?

start with 11.5. multiply 11.5 by 2. add 1.5 and 3.25 and 6.

start with 11.5. multiply 1.5 by 2. add this product to 11.5. then add 3.25 and 6 to the answer.

start with 11.5. add 1.5 and 3.25 and 6. multiply the answer by 2.

i need the its 50 points

The coordinates of vortex a’ are (8,4) (-4,2) (4,-,4) the coordinates of vortex b’ are (6,6)(12,-,12)(12,12) the coordinates of vortex c’ are(-2,,12)(4,12)(12,-4)

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.)

Which diagram shows lines that must be parallel lines cut by transversal?