A frustrum is formed when a plane that is parallel to a cone’s base cuts off the upper portion, as shown below. What is the volume of the frustrum? Leave the answer in terms of pi.

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

How do i put 3(x+7) in distributive property