20. Personal computers are a fixture in most business and in many homes.
a. True
b. False

Why are gold and platinum used for jewelry

What is 7/81 as a percentage? round your answer to the nearest tenth of a percent.

Certain gases in air are important natural resources that are used in welding. two of these gases are a. oxygen and argon b. hydrogen and fluorine c. chlorine and sulfur dioxide d. nitrogen and carbon dioxide