un hacendado a comprado doble número de vacas que de bueyes, por cada vaca pago 70 dólares y por cada buey 85 dólares, si le importe de la compra fueron 2,700 dólares cuantas vacas y bueyes compro

Find the domain and range of the following function f(x) = 51x - 21+ 4

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?

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25