Your are an avid coin collector. you decide to start keeping better track of your coin collections : after 15 days you count and find out you have 155 coins. after 22 days you have a total of 218 coins. write an equation in slope intercept form that represents this situation

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