Пошаговое объяснение:
1). 50,55,60,65,70,75,80,85,90,95,100,105,110,115,120,125,130,135,140, 145,150,155,160,165,170,175,180,185,190,195,200,205,210,215,220,225,230,235,240,245,250,255,260,265,270,275;
2)36, 45,54,63,72,81,90,99,108,117,126,135;
3). 6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,69,72,75;
4). 750,752,754,756,758,760,762,764,766,768,800,802,804,806,808,810,812,814,816,818,820,822,824