A man can hit a target once in 9 shots

A man can hit a target once in 9 shots. If he fires 4 shots in succession, how many ways that he will hit his target?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #71680