Three numbers are in arithmetic progression. Their sum is 3 and the sum of their squares is 11. What are the three numbers? I already have -1,1,3. What is the other three?

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?

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50

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