Shirley is drawing triangles that have the same area. the base of each triangle varies inversely with the height. what are the possible base and height of a second triangle if the first triangle's base is 12 and its height is 8?

Jack has a rectangular piece of land, the area of which is represented by a1 = 9.5l. his brother has a different rectangular piece of land, the area of which is represented by a2 = l(14 − l). let a represent the area in square meters and l represent the length in meters of the pieces of land. the two equations plotted on a graph meet at a point as shown in the image

You make a necklace using blue, purple, and green beads in a ration of 1: 1: 2. you use the total of 168 beads. how many green beads in the necklace?

4percent of a number is what fraction of that number? ? i really need asap