What was a serf? A. a Russian lord who owned a large estate
B. a Mongol fighter who settled in the Kievan Rus
C. a peasant legally bound to live and work on land owned by a lord
D. a member of the Romanov dynasty that ruled Russia for 300 years

1. seasonal

2. frictional unenployment

3. the number of the labor force multiplied by 100 and then subtract the number of unemployed.

4. 4%

5. an increase in prices

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.

its tr3way you already know

this is called police cynicism. i hope this .