Answer:
84 different lineups are possible
Step-by-step explanation:
The order in which the songs are chosen is not important. So we use the combinations formula to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.

In this question:
6 musics from a set of 9. So

84 different lineups are possible
Answer:
im not exactly sure but i think it would be y=1x-2
Answer:
6
reduce the expression and if possible do that by cancelling the common factors :)
Domain is all real numbers.
Range is all real numbers such that y is greater than -49/12
There are 2 triangles once u slice in half so triangles is the right answer