2, 6, 18,
find the common ratio of the given sequence, and write an exponential function which represents the sequence. use n = 1, 2, 3,

a) 3; f(n) = 2(3)n-1

b.) 1/3; f(x) = 2(3)n-1

c) 3; f(n) = 2(1/3)n-1

d). 1/3; f(n) = 2(1/3)n-1

Any greatly appreciated! you in advance. jody bought 20 shares of amazon at the close price of $121.00. she bought 20 more shares a year later at the price of $127.00. two years later she's sold all of her shares at the price of $133.00. her broker charges $50 for each transaction. after all of these transactions how much money did jody make? a.$65.00b.$5288.00c.$210.00d.$310.00

Graph the equation by plotting point x=2

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.