Ava is 23 cm taller than olivia is half the height of lucas. if lucas is 1.78 m tall, how tall are ava and olivia? express their height in centimeters.

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.