(100 points) Need help now, performance task. (last question on the test)

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

Allen's goal is to have between 1,500 and 1,600 bottles in his collection. write and solve a compound inequality to determine the number of weeks it will take allen to reach his goal. show your work. *

Ashipment of 18 cars, some weighing 3000lb a piece and th eothers 5000lb each, has a total weight of 30 tons. find the number of each kind of car.