Martina is currently 10 years older than her cousin joey. in 3 years she will be 3 times as old as joey. use this information to answer the following questions. part 1 out of 4 if you let x represent joey's current age, what expression can you use to represent martina's current age?

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 −