Which are valid variable names? Select 2 options. cost$

firstNumber

$cost

1stNumber

first_number

Requirement types discussed during software development include functional and color scheme nonfunctional and code style constraint and nonfunctional fashionable and functional.

Your company has 1,500 desktop computers running windows 7. you want to upgrade them to windows 10. which type of microsoft license would be best suited in this situation?

Which of the following is not a way in which trees benefit the environment? a. they remove a significant amount of carbon dioxide from the atmosphere. b. they remove a significant amount of oxygen from the atmosphere. c. their roots hold soil in place, reducing rates of erosion. d. they remove ozone and particulates from the atmosphere. select the best answer from the choices provided a b c d