18. A 22 ft ladder is leaning up against a building at a 60° angle. How high up the building can this ladder reach, assuming the 60° angle is constant?
A) 22 ft.
B) 1173 ft.
C) 22v3 ft.
D) 11 ft.

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.