7. Determine the positive solution for each of the following equations, a.
121=x2
b. x3=1000
c.
17 + x2 = 42
d. x3 + 3x – 9 = x - 1 + 2x
e. The volume of a cube is 216cm, what is the length of one side?

(PLEASE HELP)

The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)