The correct and best answer is r=320 because you have to divide both sides by 0.3
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
There would be 203,759 total registered doctors that year.
Answer:
C
Step-by-step explanation:
Sorry if I’m wrong but I think I’m right