the expenses of a boarding house is partly fixed and partly varies with the number of boarders. Each boarder pays $390 a month. The profits are $54 per head per month. When there are 60 boarders, what is the profit per head per month where there are 80 boarders

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.