If Mariah's school sold 23240 in magazine sales and Cole's school raised 16502 in sales we can determine how much more money Mariahs school raise by determining the difference of the two:
Mariah's school raised 6738 more than Cole's school in magazine sales.
The data can be modeled using linear equatins, because there's the same amount of population for fish A (+20 per year) and fish B (+30 per year) every year.
