Answer:
Third option : [tex]h(x)=4x+20[/tex]
Step-by-step explanation:
All ride pass is a one time payment that parents have to do. It will not change with the amount of rides.
So, [tex]f(x)=20[/tex]
Each rise will cost $4, so if you take [tex]x[/tex] number of rides the total amount paid will be:
[tex]g(x)=4x[/tex]
Now we can add these two functions to find the Total amount paid for the amusement park:
[tex]h(x)=4x+20[/tex]