3x-8 is less than or equal to 23 and -4x +26 is greater than or equal to 6

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'