Element X is a radioactive isotope such that every 33 years, its mass decreases by half. Given that the
initial mass of a sample of Element X is 9400 grams, write a function showing the mass of the sample
remaining after t years, where the annual decay rate can be found from a constant in the function.
Round all coefficients in the function to four decimal places. Also, determine the percentage rate of
decay per year, to the nearest hundredth of a percent.