Which of the following exponential functions goes through the points (1, 12) and (2, 36)? Select one:
a. f(x) = 4(3)−x
b. f(x) = 3(4)−x
c. f(x) = 3(4)x
d. f(x) = 4(3)x

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?

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