PLZ HELP HURRY TImEd teST PLZHeLP me

Ascatterplot is produced to compare the size of a school building to the number of students at that school who play an instrument. there are 12 data points, each representing a different school. the points are widely dispersed on the scatterplot without a pattern of grouping. which statement could be true

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

Abox holds 500 paperclips. after a week on the teacher's desk 239 paperclips remained. how many paperclips were used?