A new gardener is finally seeing tomatoes ready for harvest on day 23 there were 3 tomatoes ready for harvest and on day 30 there were 17 available for harvest. Assuming tomatoes grow and are ready to harvest in a linear model, what is the slope in this situation?
a) 2 tomatoes/day
b) 3 tomatoes/day
c) 4 tomatoes/day
d) 5 tomatoes/day