3. Тип 6 № 12519 Найдите координату точки А, отмеченной на числовом луче.

The number line starts at 0 and ends at 75. Point A is located at the 5th grid mark from 0. Since there are 5 grid marks between 0 and 75, each grid mark represents 75 / 5 = 15 units. Therefore, point A is at 5 * 15 = 75.