The value of a share of stock decreases in value at a rate of $1.70 per hour during the first 6.5 hours of trading. enter and solve an equation to find the decrease in the value of the share of stock during that time. let x represent your variable.

Need solving this 2nd limit problem.

Yvaries directly as x. y =90 when x=6. find y when x=13

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