Which was the primary source great zimbabwe's wealth

Great Zimbabwe is a medieval city, which was the capital of the Kingdom of Zimbabwe during the Late Iron Age. At its peak, the city could have housed up to 18,000 people. As it is believed that the capital was located here, the city is believed to have served as a royal palace and seat of government.

Great Zimbabwe was a center for trading, and its wealth was mostly acquired thanks to the trade of ivory, and more importantly, gold. Some estimates indicate that more than 20 million ounces of gold were extracted from the ground.

x=4, y=4

step-by-step explanation:

y=2x-4;

x+2y=12

we can use substitution since the first equation is solved for y

where ever you see y in the second equation, replace it with 2x-4

x + 2(2x-4) = 12

distribute the 2

x+4x-8 = 12

combine like terms

5x-8=12

add 8 to each side

5x-8+8=12+8

5x=20

divide by 5

5x/5 = 20/5

x =4

we still need to solve for y

y = 2x-4

we know x =4

y = 2(4) -4

y = 8-4

y=4

the answer is c because info security should not use them for code