A local store ordered a shipment of video game systems. The store sells 30 systems weekly to customers. As a result, the number of systems in stock decreased to 190 in the first week. Which statements correctly interpret the rate of change, or the y-intercept, of the given situation? Select all that apply. A There are 30 systems sold each week. B There are 190 systems in the shipment. There were 220 systems in the shipment. D The situation can be modeled as y = 30x - 190. E The situation can be modeled as y = -30x + 220