The selling price of an item is $495. It is marked down by 20%, but this sale price is still marked up from the cost of $360. Find the markup from cost to sale price.

What is the distance between (–2 1/2,-3) and (1, –3)?

Question: a) does the given set of points represent a linear function? how do you know? b) assume that the point (-2,4) lies on the graph of a line. what y-values could complete this set of ordered pairs that lie on the same line: (- (hint: there are several correct answ

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle