The probability of landing on a 3 on a biased dice that is rolled 300 times

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Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.