В двух экскурсионных катерах могут разместится300 пассажиров. В первом катере мест в три раза больше, чем во втором. Сколько мест в каждом катере?

ЧИСЛО МОЛЬ УГЛЕРОДА КОТОРОЕ СОДНРЖИТСЯ В 4,5*10(23 СТЕПЕНИ) АТОМОВ

(1+4x/2x-3)'=? Помогите найти производную.

It was a dark, stormy day during school holidays, and Ann and Tim was watching television at home, bored. "I know, Ann, go to the castle. Tim said excitedly." There's a good museum. It was late at night, when they arrived, and they were the only visitors. "Oh, it's a little scary here!" Ann said, when they walked slowly through the cold, dark rooms of exhibits. "Don’t be a fool," Tim said. Tim suddenly noticed an interesting piece, which was a model of a man dressed in a suit of very old. He was standing next to him and Anne photographed them with a digital camera, but then, as she looked at the screen, she could not believe my eyes! Tim was standing alone in the photo - man was not next to him! Then they looked up and saw that the model was not in the room anymore! He's gone! Ann and Tim quickly ran back to the front desk. They were horrified! They told the lady there her story. "Ah-ha! This is not a model, it was Henry, the museum ghost, she said, smiling. Tim looked at Anne. She was completely white! переведите текст плиз)