An art gallery has eight new paintings, all the same size, but enough room on the wall for six of them. how many ways can the director arrange the eights paintings on the wall? 28 48 20,160 40,320

What is the area of triangle abc if a = 8, b = 11, and c = 15?

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?