Aband leader randomly selects 2 students out of 80 band members. if you and your brother are both band members, what is the probability that you are both selected?

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0

List the sides of δrst in in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12°

Aresearcher believes increased perceived control influence the well-being of residents at a nursing home. to test this , she allowed one group of residents to have control over their daily lies, (where to eat etc) . the other group of 5 residents had these deceisions made by staff. the resident's feelings of well-being were measured on a 10 point scale at the end of a one month trial period. is there a difference on well-being?