Sharon called 3 friends on friday. on saturday, each of those 3 friends called 3 different friends. on sunday, each person who was called on saturday called 3 different people. how many friends were called on sunday?

When ∆rst is translated 4 units down, what are the apparent coordinates of t’? give 15 points

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.

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 −