A trampoline park costs $12 for the first hour and $6 for each additional hour. Flynn pays $30 at the trampoline park.

Select the equation that represents the given situation and find the number of additional hours Flynn stays at the trampoline park after the first hour.
A.
12x + 6 = 30; 2 hours
B.
12x + 6 = 30; 3 hours
C.
6x + 12 = 30; 3 hours
D.
6x + 12 = 30; 2 hours

The correct equation would be:

12 + 6x = 30

Now, we can solve for x:

6x = 30 - 12
6x = 18
x = 3

Therefore, Flynn stays for 3 additional hours after the first hour, so the correct answer is:

B. 12 + 6(3) = 30; 3 hours