Which of these was first used during the song dynasty (960-1279)
a: compass
b: gunpowder
c: paper currency
d: woodblock printing

Say a certain manufacturing industry has 63.1 thousand jobs in 2008, but is expected to decline at an average annual rate of 1.7 thousand jobs per year from 2008 to 2018. assuming this holds true, what will be this industry’s percent change from 2008 to 2018? a. 70% b. -27% c. -17% d. -75%

What is the role of communication within groups of people with different backgrounds?

What role does the government have in resolving domestic disputes and disagreements