pls help wit this c++ formula

[Clinton]

A model to estimate the number of grams of a radioactive isotope left aftert years is given by this formula:remaining material = (original material) e-0.00012tUsing this formula, write, compile, and execute a C++ program to determine the amount ofradioactive material remaining after 1000 years, assuming an initial amount of 100 grams.Verify the display your program produces by using a hand calculation. After verifying thatyour program is working correctly, use it to determine the amount of radioactive materialremaining after 275 years, assuming an initial amount of 250 grams.

Pls can some1 help me with how to represent this formula in c++