How can one use the formula to calculate the lifetime of a black hole with the mass of the sun?

Well sweetheart, calculating the lifetime of a black hole with the mass of the sun involves a little thing called Hawking radiation. You use the formula Time = 5120 x pi x (G^2 x M^3) / (h x c^4) to crunch those numbers. So grab a calculator, put on your thinking cap, and dive into the fascinating world of astrophysics.