NEED HELP 15 POINTS Use the graph to write an explicit function to represent the data and determine how much money Shelley earned in week 5.

graph with x axis labeled Number of Weeks and ranges from zero to seven, y axis labeled Money Earned, in dollars, and ranges from zero to one hundred eighty with points at one comma six, two comma eighteen, three comma fifty four, and four comma one hundred sixty two

f(n) = 5(3)n − 1; f(5) = 405
f(n) = 6(3)n − 1; f(5) = 486
f(n) = 6(3)n; f(5) = 1,458
f(n) = 6(3)n + 1; f(5) = 4,374

Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?