Aparty-size bag of tortilla chips normally costs $3.80. the supermarket has them on sale today for $2.85. what is the percentage of them discount

Which of the following parabolas opens up?

The graph of a curve that passes the vertical line test is a:

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