After Adams birthday half of the cake was left over left over. Adam and his four friends are only allowed to eat 1/5 of the cake. What fraction of the whole cake will Adams and his friends have eaten after his birthday party? I will give brainlist​

An observer(o) spots a plane(p) taking off from a local airport and flying at a 29 degree angle horizontal to her line of sight and located directly above a tower(t). the observer also notices a bird circling directly above her. if the distance from the plane(p) to the tower(t) is 6,000ft., how far is the bird(b) from the plane(p).