Sally buys a coffee table for $300. She refinished it and then sells it for $405. What is the percent increase

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

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.

X+ y = 5 ; x - y =3 solve using linear combination