How could a work-cite post help a reader setter mine the validity of an easy?

(05.04 mc) how did the roman transportation system keep the empire strong? plz

What is the scientific revolution? what techniques did the scientist use

What do sellers do if they expect the price of goods they have for sale to increase dramatically in the near future? store the goods indefinitely regardless of when the price rises store the goods until the price rises and then try to sell them sell the goods now and try to invest the money instead of resupplying sell the goods now but try to get the higher price for them