Final answer:
The Babylonians, Egyptians, Phoenicians, Mayan, and Romans had different number systems. The Babylonians used a base-60 system, the Egyptians used base-10, the Phoenicians used a non-positional system, the Mayans used base-20 with zero concept, and the Romans used a non-positional system without zero concept.
Step-by-step explanation:
The number systems used by the Babylonians, Egyptians, Phoenicians, Mayan, and Romans varied significantly.
The Babylonians used a sexagesimal (base-60) system, which is why we have 60 seconds in a minute and 60 minutes in an hour. They developed a place value system and used cuneiform symbols to represent numbers.
The Egyptians used a decimal (base-10) system, with hieroglyphic symbols representing different powers of ten. They did not have a zero concept.
The Phoenicians used a non-positional number system where the value of a symbol depended on its position relative to other symbols. This system did not have a zero concept either.
The Mayans used a vigesimal (base-20) system, with a combination of symbols for different powers of twenty. They had a zero concept and were one of the first cultures to use zero as a placeholder.
The Romans used a non-positional numeral system, with letters representing different values. They did not have a zero concept either.