Denny buys a rare coin for $200 and sells the coin 1 year later for $220. dennys rate of return is a. 20% b. 10% c. 110% d. 91%

U.s. internet advertising revenue grew at the rate of r(t) = 0.82t + 1.14 (0 ≤ t ≤ 4) billion dollars/year between 2002 (t = 0) and 2006 (t = 4). the advertising revenue in 2002 was $5.9 billion.† (a) find an expression f(t) giving the advertising revenue in year t.

Beachballs, inc., expects abnormally high earnings for the next three years due to the forecast of unusually hot summers. after the 3-year period, their growth will level off to its normal rate of 6%. dividends and earnings are expected to grow at 20% for years 1 and 2 and 15% in year 3. the last dividend paid was $1.00. if an investor requires a 10% return on beachballs, the price she is willing to pay for the stock is closest to:

Jason is looking for an engagement ring to offer his girlfriend. he has found a similar ring at each of four different jewelry stores. he doesn't have enough money to pay for the ring in cash, so he is planning on opening a line of credit (credit card) at the store he ends up buying the ring from. the chart below outlines the difference in the price of the rings the different stores offer as well as the difference in credit options. jason plans to pay off the ring purchase in 36 months. according to the information in the table, which of the jewelry stores will have the cheapest ring in the end?