Can someone reflect on these problems using their own words, I don't know how to describe it. (1 Paragraph or more) Instructions on how to reflect included :) (The problems are solved it's just the explaining)

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.