
Where P represents the total cost on Parabola skate and h the numbr of hours

Where A represents the total cost on Arc o Hawka nd h the number of hours
h=2 for the second equation

To know when the first store is cheaper than the second we compare the two equations using less than, so
![Pso[tex]4.50h+35<5.25h+25](https://img.qammunity.org/2023/formulas/mathematics/college/kby21vw0qyw7gwqd8l6p5hyhz3z9estpqj.png)
and solve for h

the first store will be cheaper when the skateboard is used for more than 13.3 hours
to know when they would cost the same we equal the equations


and if you need the coordinates, you can replace 40/3 on any equation to know the cost
so we can replace 40/3 on any equation, i will use the first

the cost is $95 and the coordinates ( 40/3 , 95 )