Amanatee surfaced for air 3 times in 243 seconds. how many seconds went by before the manatee surfaced the first time if it held its breath for the same rate?

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.