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Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5