I need to know the slope

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

The monetary value earned for selling goods or services to customers is called a.) revenue b.) assets c.) money d.) accounting

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?