Compute the present value of a $100 cash flow for the following combinations of discount rates and times: 1. r = 8 percent. T = 10 years. 2. r = 8 percent. T = 20 years. 3. r = 4 percent. T = 10 years. 4. r = 4 percent. T = 20 years.

I have a 1929, a 1934, a 1939, and a 1950 wheatback penny. I'm told that the 1934 and 1939 are in a #2 condition; the 1929 and 1950 are in #3 condition. I am trying to find out how much they are worth a piece. I was told that the 1934 was worth between $100 and $200. I don't know about the...

How would you determine the values of k if the graph of y=2x^2-2x+3k intersects the x-axis at two distinct points? I was wondering too just aside from the question how do you check if an equation is congruent to another, by hand? I had to find the equation of a parabola that opens downward...