Energy conversions a. can lose energy as sound b. can be 100 percent efficient if controlled properly c. are calculated by multiplying useful energy by the total amount of energy

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

its c i google it wish u luck

answer; the sons of liberty;

answer; observation and imitation;