There is a difference because in the spring, there may be more days of rain, therefore that would increase the mean for the spring compared to the other days.
N + (3n - 15) = 101 is the equation, the answer to the equation is 29
3/5 both 12 and 20 can both be divided by 4
There are six vowels and 4 card suits
Each vowel can pick from 4 suits so 4*6=24
24 outcomes
11.70 gallons....................................