Solve 4 term expression to simplest form 8a³+8a-27b³-12b

Derricks dog sitting and darlene's dog sitting are competing for new business. the companies ran the ads shown.which dog sitting service is more economic to use if you need 5 hours of service? explain.

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

Find the slope of the line passing through a pair of points