In australia the size of a typical home has increased from 220m to 245m over the past 10 years. find the ratio of house area today compared to 10 years ago.

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