Anybody down to be friends

The perimeter of a square is80-64y units. which expression can be used to show the side length of one side of the square?

Factor the polynomial. b^2 + 4b + 4

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.