Across section is cut from a brass cylinder with walls that are 2 centimeters thick. the radius of the cross section, measured to the outer portion of the ring, is 5.5 centimeters. what is the maximum volume of a ball that could pass through the interior of the brass ring?

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )

Sherrie is baking a pie for her family. she leaves the room and comes back to 35% of the pie having been eaten before she can put the topping on. how much 1 square inch strips of dough will she need for the top, now that a portion is missing? round your answer to the nearest while nimber.