Answer:
10,065
Step-by-step explanation:
JUST USE CALCULATOR LOL
Answer:

or

Considering ![\theta \in (0, 2\pi]](https://tex.z-dn.net/?f=%5Ctheta%20%5Cin%20%280%2C%202%5Cpi%5D)

or

Step-by-step explanation:

We have:

Therefore,

or

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or

I wanna say 60 but i dont know
The total cost would be:
$20 = two people- 2*20=40$
20 = guest
20*20=
400 would be the cost