Which of the following quadrilaterals have diagonals that are always perpendicular to each other

Abox of chocolates costs $7. which equation relates the number of boxes sold (x) and total cost of the boxes sold (y)?

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Question 9 of 10 2 points suppose your sat score is 1770. you look up the average sat scores for students admitted to your preferred colleges and find the list of scores below. based on your sat score of 1770, which average score below represents the college that would be your best option? o a. 1790 o b. 2130 o c. 2210 od. 1350