The total charge for a taxi ride in nyc includes an initial fee of $3.75 plus $1.25 for every 1/2 mile traveled. jodi took a taxi, and the ride cost her exactly $12.50. how many miles did she travel in the taxi?

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?