A billboard is two different colors. what is the area of the white part of the billboard

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year

The moats separating people from the animals are 5 m wide for lions and 4 m wide for the elephants. if the lion’s moat is 4 m deep, how deep should the elephants’ moat be?