If it takes 5 men 20 hours to brick a house, how long will it take 8 men to do the job if they work at the same rate ? a) 7.5 hours b) 10.5 hours c) 12.5 hours d) 15.0 hours

Erinn wrote the equation –5x + 4y = 32 to represent her hourly wage (y) and how this wage has changed during each year that she worked at a company (x). what is the rate of change in erinn's hourly wage per year?