How do people create hacking OS like kali Linux because I want to make my own operating system how can I code my own hacking Os without using the one that already exists?

Which location-sharing service offers items for users as a gaming component and also allows them to collectively link their check-ins to publish a trip? a. whrrl b. buzzd c. foursquare (this option is wrong i already tried) d. gowalla for plato

If joey was single and his taxable income was $9,500, how much would he pay in taxes each year?

On early television stations, what typically filled the screen from around 11pm until 6am? test dummies test patterns tests testing colors