Solve for the blanks

A. A gift of $33000 to a city grew to $99,000,000 in 200 years. At what interest rate compounded annually would this growth occur?

The interest rate would be _____?%.

(Do not round until the final answer. Then round to the nearest hundredth as needed.)

B. A stock that sold for $4343 per share at the beginning of the year was selling for $8383 at the end of the year. If the stock paid a dividend of $7.977.97 per share, what is the simple interest rate on the investment in this stock? Consider the interest to be the increase in value plus the dividend.

The simple interest rate is _____?%.

(Do not round until the final answer. Then round to the nearest tenth as needed.)

C. At the average annual inflation rate of 8.28.2%, about how long would it take for the general level of prices in the economy to double?

It would take about ______ years for the general level of prices to double.

(Do not round until the final answer. Then round to the nearest whole number as needed.)