A 455-foot fence encloses a pasture. What is the length of each side of the pasture? The shape of the pasture is a trapezoid (sort of).
One side says 3x ft, one side says 1.5x ft, one side says 180ft, and the last side says x ft.
How do I solve this problem?

Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. which of these statements are true? check all that apply. there are 20c3 possible ways to choose three books to read. there are 5c3 possible ways to choose three mysteries to read. there are 15c3 possible ways to choose three books that are not all mysteries. the probability that mariah will choose 3 mysteries can be expressed as . the probability that mariah will not choose all mysteries can be expressed as 1 −