LAST QUESTION PLS HELP idk if you can see it all

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

The party planning committee has to determine the number of tables needed for an upcoming event. if a square table can fit 8 people and a round table can fit 6 people, the equation 150 = 8x + 6y represents the number of each type of table needed for 150 people.

Which point has an coordinates of (2,0) ? a