How many years, to the nearest tenth would it take for an investment of $100 to double if it is earning a continuous compound interest of 3.5% per year? (A) 17.4 years (B) 19.8 years (C) 22.5 years (D) 25.1 years​

C=59(f−32) the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true? a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of 59 degree celsius. a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit. a temperature increase of 59 degree fahrenheit is equivalent to a temperature increase of 1 degree celsius. a) i only b) ii only c) iii only d) i and ii only