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