100 show your work.

1.) equation m: 3y = 3x + 6
equation p: y = x + 2
which of the following best descibes the solution to the given set of equations?
-no solution
-one solution
-two solution
- infinite

2.) ^use photo.
how many solutions are there for the pair of equations for line a and b? exsplain your answer!

3.)
y = -2x + 8
y = x - 1
explain how you will solve the pair of equations by substitution. show all the steps and write the solution in (x, y) form

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 −