How many side does the polygon have?

We can do it with the equation written; we'll try that next.  I find it easier to remember the exterior angles, which are the supplements of the interior angles, add to 360 degrees.

The exterior angle is 180 - 144 = 36 degrees.   n = 360/36 = 10

10 sides

Let's try it your way now.

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i

i think it is 18

step-by-step explanation: