Moving company charges $115 to rent a truck for a three day. plus an additional $.83 for each mile driven. the average cost per mile for a three day period is given by the rational expression 115+.83x over x, where x is the number of miles driven during the rental period. what does the numerator of the rational expression represents?

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 −