Candy bars have increased in price by 9% in recent years. If today's price is approximately $1.70 how much was the original price of candy bars before the price increase?

Which system of linear inequalities is represented by the graph?

What is the value of the discriminant, b2 ? 4ac, for the quadratic equation 0 = x2 ? 4x + 5, and what does it mean about the number of real solutions the equation has?

The table shown below gives the approximate enrollment at the university of michigan every fifty years. how many more students were enrolled at the university of michigan in 1950 than in 1900?