Please help meee when a particle of mass m kg is placed on a rough plane inclined 30° to the horizontal the particle is on the point of slipping down the plane. The co-efficient of friction between the particle and the plane is μ.
Find μ

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.