In general, 0.28 of all students default on their student loan debt. A sample of 542 students with student loan debt is randomly selected and it's found that 77 of them default. What is the population proportion ?

12 point are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr?

What is the solution set of the quadratic inequality x^2-5< or equal to 0

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )