The equation yˆ=105.416x+1249.309 models the amount of money, in dollars, a charity raises during an annual event when x people attend the charity dinner. what does the y-intercept of the equation represent in context of the situation? it costs the charity $105 to host the dinner. if no one came to the dinner, the charity would still raise about $105. it costs the charity $1250 to host the dinner. if no one came to the dinner, the charity would still raise about $1250.

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 −