Simplify the following expression: √20 + √16

Polygon hh is a scaled copy of polygon gg using a scale factor of 1/4. polygon h's area is what fraction of polygon g's area?

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?

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.