ANSWER PLEASE If we change one side of a square by factor of 5, of 0.5, of 12 and of 1/12 , by what factor will the perimeter change?

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.