We know that the growth rate is constant for both species of plants. So we can say that the height is a linear function of the number of days since d = 0.
Assumption (1 month = 30 days)
Species A: Growth rate = 2 cm/month = 2/30 = 1/15 cm/day Height on day d = 0: 12 cm Height: H(d) = 12 + d/15
Species B: Growth rate = 3 cm/month = 3/30 = 1/10 cm/day Height on day d = 0: 10 cm Height: H(d) = 10 + d/10
It contrasts the fear he feels about becoming Hyde with the peace he feels when safe at home. It allows readers to see events from Mr. Hyde's reckless perspective
The characters know their place and because of this is makes them live sad lives because they want more than they can get. The outcome of the story is sad and Lennie shouldn't have died but there was no better option.
