Modeling with Rational Functions Answers

Which rational function models the time, y, in hours, that it takes the train to travel between the two cities at an average speed of x miles per hour? y = x/6.4y = x/160y = 6.4/x✔ y = 160/x

Which rational function models the average cost per skirt, y, in dollars, for making a total of x skirts?

If the volume of the gas increases from 600 to 800 in.3, by how much does the pressure change?

On average, how much more is the total cost of owning a cat for 10 years than owning a small dog for 10 years? $