Sahil is buying a graphing
calculator at the store where he
works. the calculator is on sale for
10% off of the regular price. sahil
gets an additional 10% employee
discount and he has a $20 gift he
can use towards his purchase. if
the cost of the calculator is $52.90, before taxes, what was the original price of the calculator?

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