An anthropologist compares tool use across three prehistoric sites. Site X yields 45 tools, Site Y produces 20% more than Site X, and Site Z produces 25% fewer than Site Y. What is the average number of tools per site?

March 11, 2026

An anthropologist compares tool use across three prehistoric sites. Site X yields 45 tools, Site Y produces 20% more than Site X, and Site Z produces 25% fewer than Site Y. What is the average number of tools per site?

**An anthropologist compares tool use across three prehistoric sites. Site X yields 45 tools, Site Y produces 20% more than

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