Your answer would be (w+2)(w−10). If you want me to explain please don't hesitate to ask.
It depends if its decreasing 25% of the original quantity or decreasing by 25% of the quanity that is after already increasing by 25%.
16,500
60 minutes in an hour / 12 minutes = 5
5 * 3,300 = 16,500
30 since that’s the lowest number both 3 and 10 can fit in