A drug company testing a pain medication wants to know the impact of different dosages on patients' pain levels. They recruited volunteers experiencing pain to try one of 6 different dosages and then rate their pain
levels on a scale of 1 to 10. Here are the results:

The system of equations graphed below has how many solutions?

In the 30-60-90 triangle below side s has a length of and side r has a length

Which statement accurately explains whether a reflection over the y-axis and a 270° counterclockwise rotation would map figure acb onto itself? a coordinate plane with figure acb with point a at 1, 1, c at 3, 4 and b at 5, 1 yes, a″c″b″ is located at a″(1, 1), c″(4, 3), and b″(1, 5) yes, a″c″b′ is located at a″(1, 1), c″(3, 4), and b″(5, 1) no, a″c″b″ is located at a″(1, 1), c″(4, 3), and b″(1, 5) no, a″c″b″ is located at a″(1, 1), c″(3, 4), and b″(5, 1)