Ответ:
Пошаговое объяснение:
1) -28,-27,-26,-25,-24,-23,-22,-21,-20,-19,-18,-17,-16,-15,-14,-13,-12,-11,-10,-9,-8,-7,
-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,
24,25,26,27,28=57 чисел
2) от -100 до 100 = 200 чисел
3) от -99 до 199 = 298 чисел