Answer
They make money.
Work Step by Step
As the number of tubes of toothpaste increases, we see that the profitability increases as well. In other words, as we sell more toothpaste, we earn more money. We know that below 1875 tubes we will be losing money, while above that amount, we will be making money. Thus, we know that selling 2000 tubes of toothpaste will make the company money.