The equation for renting a bike for h number of hours is shown as;
[tex]\begin{gathered} C=3h+9 \\ \text{Where C is the total cost, h is the number of hours paid for bike rental} \end{gathered}[/tex]If however Hope does not want to spend more than 30 dollars, that is her C in the equation must be 30 or less, then the equation would change to the following;