Sadie needs to travel 15 miles.
Checker Cabs charges $2.50 plus $.25 for every
mile.
Relaxi Taxi charges $4.50 plus $.20 for every ) mile.
How much money, in dollars. will Sadie save if she uses Relaxi Taxi instead of Checker
Cabs?

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 −