Every employee at a manufacturing plant is either a manager or a line worker. The plant currently has a ratio of \(4\)

Every employee at a manufacturing plant is either a manager or a line worker. The plant currently has a ratio of \(4\) managers to \(9\) line workers. How many line workers does the plant currently have?

1. The plant currently has between \(40\) and \(60\) employees

2. If the plant added \(4\) more managers, the plant would have \(20\) managers

OA D