the decrease in the price of hotdogs results in a decrease in the demand for hamburgers. these two products are

substitute goods

Explanation:

Substitute goods are goods consumers found as alternative to each other, while still serving the same purpose of consumption or usage. Consequently, when the price of a substitute product decreases, this will result to increase in quantity demanded for such good, however, the effect is the decrease in demand for the alternate good that it is being used as a substitute.

Hence, when the decrease in the price of hotdogs results in a decrease in the demand for hamburgers. these two products are concluded to be SUBSTITUE GOODS.

c. as a force against soviet invasion of afghanistan

true

coz they had the rank system in society according to the economic power of the people