Verb conjugation of "benötigen" in German

Today the spring really showed itself. It was over eighteen degrees and people started wearing nice and with T-shirts. Snow has melted and the temperature is steady. I can't wait for the summer.
Anyway, once we arrived at the guest house the rules were explained: Washing my Jeans would be 2 dollars, a pair of socks 1 dollar and so on. I did not feel comfortable with these people.
I was surprised that he charged 5 dollars extra (a total of fifteen instead of ten), because he had to take us to three different locations. I did not buy the whole thing and gave him ten bucks.