Billie Sue's BBQ had their grand opening this year. The first month they did not turn a profit. However, each month thereafter, they have had steady profits of $1,500 per month. If x represents the number of months they have profited, which of the following equations represents the amount of profits after x months? A. y = 1,500x B. y = 1,500 - x C. y = 1,500x + x D. y = x + 1,500