The graph shows the number of players in the first four rounds of the U.S Open women's singles tennis tournament. U.S. Open Women's Singles Part A: Write an explicit rule for the sequence of players in each round. fn) ↑ f(n) • (1,128) 120 80 • (2, 64) (3,32) •(4, 16) n 40 Part B: How many rounds are there in the tournament? (Hint: In the last round, only two players are left.) 2 4 6 Round Number of players

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