Amermaid is swimming at sea level when a human comes by. she dives underwater at a rate of 8 meters per second. she continues to descend for 20 seconds. what depth is she now?

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

How is this equation completed? i cannot find any examples in the book.

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