A sample of radium has a weight of 1.5 mg and a half-life of approximately 6 years. a) Find a function F which models the amount of radium f(t), in mg, remaining after t years

b) How much of the sample will remain after 6 years? 3 years? 1 year?

this is the formula: v = the value of investment at the end of the time period

p = the principal amount (the initial amount invested)

r = the annual interest rate

n = the annual frequency of compounding (how many times a year interest is added)

t = the number of years the money is invested

^ means raise to the power of