Need !
the rain fall total two years ago was 10.2 inches. last year's total was 20% greater. what was last year's rainfall total?

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.