PLEASE HELP!! Four years ago, Sarah deposited $2,000 into a savings account.
When she went to the bank to collect her money, she was excited
to see she had earned $400 in simple interest after the 4 years.
What was the annual interest rate Sarah was given by the bank?
Annual Interest Rate:
%

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