Best anwser gets brainiest plz plz plz if you can trade three apples for two oranges, and you can trade three oranges for five lemons, how many apples would you need to trade for $100$ lemons?

At saturday nights football game there were 18 less fans than half the fans at friday nights game.there were "x" fans at friday's game.write an expression to represent the number of fans at saturday's game. *** urgent***