Given N2 = 14 and Nn+1 = 4Nn +2 Find N1

Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily

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

Simplify the expression below -3(10x+4y)+6(6x-2y)