two thirds divided by two to the fourth power plus three fourths plus one sixths divided by one third

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 −

The product of 3 and a number increased by 8 is 31 written as an equation

An isosceles trapezoid was broken into a rectangle and two triangles. what are the base and height of one of the triangles?