A student was asked to find the volume of the solid where the inner cylinder is hollow. He incorrectly said the volume is 1,959.36 in..

Find the volume of the solid. Use 3.14 for 1. What mistake might the

student have made?

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.