Crystal reads 25 pages in a half hour, or 30 minutes. So I can make the equation 25 = 30m, with m meaning minutes. I will divide both sides by 30 and get 8.3333..... A equation representing the relationship can be 30 over 20, or the one I made before. But in conclusion, Crystal reads 8.33... pages per minute, or 8.34 to round it.