The amount of a certain bacteria y in a petri dish grows accused riding to the equation dy/dt=ky, where k is a constant and t is measured in hours. if the amount of bacteria triples in 10 hours, then k=?

Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. the father dove down 4.74.74, point, 7 meters from the iceberg into the water to catch dinner for his kids. what is the father penguin's position relative to the surface of the water?

This is about circle theorems. someone asap : (

Geometry - finding area of regular polygons and sectors (check my math, i can’t find the error)