A party rental company has chairs and tables for rent. The total cost to rent 7 chairs and 9 tables are $73. The total cost to rent 5 chairs and 3 tables is $29 what is the cost to rent a chair in each table

Adolphin is swimming with her friend. the dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. what is the position of the dolphin's friend relative to the surface of the water? meters