I was never able to get this one

C. Both had city-states that were ruled by monarchs.

Explanation:

Mesopotamia had multiple city-states, and each was governed by a single monarch. For example, the city-state of Babylon was ruled by King Hammurabi, but he had no control over neighboring city-states.

ok, so basically your gonna start with 350 ok. so there's 60 seconds in a minute so that means you he can go up 10 ft per minute. soo, after 3 minutes he should be at 260 ft after three minutes : )