A pet store sells two different brands of dog food, Brand X and Brand Y. Last month, the store's revenue from dog food sales totaled $2,150.80. The equation represents this situation, where is the number of bags of Brand X sold and is the number of bags of Brand Y sold. According to the equation, which of the following represents the price, in dollars, of each bag of Brand Y dog food?
18.99
24.50
18.99x
2,150.80