экскаватор роет котлован. после того как было вытянуто 20 кубометров грунта производительность экскаватора снизилась на 5 кубометров. найдите первоначальную производительность экскаватора, если через 8 ч после начала работы было вынуто 50 кубометров грунта.

тип кольчатые черви,среда обитания,внешнее строение,кожно-мускульный мешок,полость тела,системы органов пищеварания,кровообрашения,выделения,процессы жизнидеятельности,нервная система,регенирация,размножение НА ПРИЕРЕ ДОЖДЕВОГО ЧЕРВЯ

Переведите пожайлусто а то я перевожу и у меня бессмыслица получается(( плохо знаю граматику

Once upon a time a city mouse visited tо his cousin in the country. The country mouse shared his simple but wholesome food.
they left the blossoming green country-side to the busy, yes, even frightening city. The noise, the traffic, the hurrying, bustling crowds jostling each other was almost too much for the simple country mouse.
The house was elegant…
Hungry from long journey, the city mouse and the country mouse began their feast, tasting one mouth-watering bit of food after another.
Suddenly a heavy door slammed, loud footsteps of big boots were heard – the threatening deep purr of an angry cat chilled the air.
«What was that?» the country mouse stuttered.
«Oh, that is the master with his big cat.»
«Good-by, cousin,» the country mouse squealed as he leaped through the hole in the pantry wall. «I’m going backto the meadow in the country. I prefer to live with the woods, the tall mountains and the fresh gurgling streams rather than in your exciting city.»