By collecting taxes.

the action of buying and selling goods and services

Yes, they traded food(surplus food) for things that they didn't have surplus of.

The high priest of every temple

They traded gold,papyrus,inen and grain for cedar wood,ebony,copper,iron ivory and lapis lazuli.

Egyptians grew crops such as wheat, barley, vegetables, figs, melons, pomegranates and vines. They also grew flax which was made into linen. The most important crop they grew was grain.

Pharaoh's collected taxes from their citizens to fund grain warehouses, building projects.

Grain grew quickly in the healthy soil of the Nile, so the people had plenty to eat. With surplus they would be able to trade food for clothing and other things they needed the most.

Farmers used this season to plant grain, barley and other fruits and vegetables. Also called the Season of the Harvest. Egyptians harvested the food they had planted, collected seeds to plant the following year and stored grain.

By trading merchandise and surplus food.

Yes,if the other tribe had something they needed they went back for it.

Tax farmers were contractors who bid on the taxes of a given area, and were compensated based on how much tax they collected

The taxes were used to stabilize and enrich society.

They traded with Anatolia for tin and copper in order to make bronze. Mediterranean trading partners provided olive oil and other fine goods.

There is evidence of agricultural use and overuse of the land dating back to 8000 BCE.