The answer is correct but I think the second step is wrong. If your trying to solve for x then first you have to subtract 24 from both sides (24 and 90) so the 24 cancels out and your left with 6x = 66. Then you divide 6 by both sides and the 6x/6 cancels out so you’ll be left with X = 66/6 and then you will get X = 11
Ruby’s function notation V(h) describes the volume of the pool after h number of hours. Hours is the independent variable and the total volume is the dependent variable.