The cost, c, of an item (the price paid by a retailer) plus the markup, m, on that item (the retailer's profit) equals the selling price, s, of the item. the formula is upper c plus upper m equals upper s. the selling price of a computer is $1770. if the markup on the computer is $130, find the cost to the retailer for the computer.

The art class is planning to paint a mural on an outside wall. this figure is a scale drawing of the wall. width: 11 in length: 28 in unit rate: 1.5 ft per in. write the ratio of the area of the drawing to the area of the actual mural. write your answer as a unit rate. show that this unit rate is equal to the square of the unit rate 1.5 ft per in

Joey is asked to name a quadrilateral that is also a rhombus and has 2 pairs of parallel sides. should be his answer

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.