Are any of you good at math

After first arriving in new york, charlie parker took a job as a dishwasher at jimmy's chicken shack, where played the piano nightly. listening to his astonishing harmonic restructuring, virtuoso phrasing, and breakneck tempos every night for three months, charlie parker challenged himself to adopt these qualities into his playing, and he continued to practice tirelessly.

What is the stele of hammurabi (above)? how did it come to exist? what is its significance?

If g(x) is the inverse of f(x) and (x) = 4x + 12, what is g(x)?