PLEASE HELP! HURRY!

Maria has a job at the local store and earns $5 per hour. She spends one-third of each paycheck on books. If y represents the number of hours she works in a pay period , which expression represents the amount in dollars that she spends on books in each pay period?

A.) 3 times 5y

B.) 5/y times 3

C.) 5y/3

D.) 5y - 3

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 −