A square has a perimeter of 36 units. One vertex of the square is located at (3,5) on the coordinate grid. What could be the coordinates of another vertex of the square? A.(3,−4)
B.(−3,−4)
C.(−4,−3)
D.(−4,3)
E. None of these

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.