Greg and josh want to go whitewater rafting in 3 weeks. josh is able to save the $480 he needs to go on the trip by saving the pay he received for 5 hours of work each week. greg must save 8 hours worth of pay each week in order to have enough money. how much more money does josh make than greg?
a.
$10
b.
$12
c.
$14
d.
$20

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 −