A man flies a plane 180 miles. Because he is flying into a headwind the trip takes him 2 hours. On the way back the wind is blowing the same speed so the return trip takes 1 hour and 12 minutes. What is his speed in still air and how fast is the wind blowing?

The federal reserve controls certain interest rates in the united states. investors often try to speculate as to whether the federal reserve will raise or lower rates and by how much. suppose a company conducts extensive interviews with financial analysts, and as a result, predicts that "thefed" will increase rates by an average of 0.25 percentage points every six months for the forseeable future. which type of equation could be used to model the predicted interest rates over the next several years, assuming no other significant changes? a) a linear equation b) a quadratic equation c) a polynomial equation d) an exponential equation