Question

HELP PLEASE!!!!!!!!!!!!!

What economic system was used by both the ancient Egyptians and ancient Mesopotamians, and made it easier for them to trade with each other?
a:barter system
b:system of taxation
c:command economy
d:gold-based currency

Answer 1

so i took the test got it right and the answer is limestone

Step-by-step explanation:

so good luck

Answer 2

Answer: it's D.

Step-by-step explanation: