Помогите составить предложения! 1)is,floor,my,on,the,room, first

2)my,there,computer,in,room,a,is

Помогите пожалуйста кто хорошо владеет английским. 8-9 класс. Тут есть ошибки?

The most important "first time" for me was when I learned how to drive a motorbike. It was very important for me because all my friends were using and i couldn't. My friend were laughing at me because i had some problems with launching the vehicle so i was nervous and when i finally did i it I didnt know what to do and it turned off. My friend showed me once again how o do it and after few minutes i already knew how to launch a motor. The next steps in my driving lessons were easy so learned very fast almost everything. Finnaly my friend said that i should try o drive on my own I was scared but i said "ok". I launched my vehikle once again and I just started to driving I was shocked but i felt realy great. He was trying to run after me but i was driving too fast and when I relased im so far i turned back and drived back to him. after everythiing i was very proud and i wanted to do this again but it was late so he game me a lift to home. That day was awsome.

Вам предлагают купить акции предприятия, которое собирается инвестировать средства в разработку нового месторождения газа. Вероятность успеха равна 1/3, а неудачи - 2/3. В случае успеха за акцию можно будет получить 60 тыс. руб., в случае неудачи - 12 тыс. руб.. 
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Задача №1

Какова сила давления на каждый квадратный дециметр поверхности тела водолаза, находящегося на глубине 100 м?

Задача №2

Б. Паскаль установил в г. Руане водяной барометр. Какой высоты столб воды в этом барометре при нормальном атмосферном давлении?

Напишите решение поэтапно, пожалуйста.