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 $1,900 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 = 1,900xb. y = x + 1,900c. y = 1,900 - xd. y = 1,900x + x