Is x^(-2) 5 a polynomial expression? Why or why not?.

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.

Solve |2x - 5| = 4 if anyone could , that would be great

Given f(t) = 282 - 53 +1, determine the function value f(2). do not include f(z) = in your answer