Which pack is better the last laugh bundle or Marvel Royalty and Warriors Pack in fortnite

Asalesman at a high end computer security firm want to sell you a proactive cover for your passport, which contains an rfid tag inside storing your sensitive information. the salesperson's solution cost only $79.99 and protects your passport from being read via radio waves while it is in your pocket. explain how you can achieve the same thing under $3.00

Linux is distributed under gnu gpl. why is this important? a. it ensures that only torvalds can profit from the sale of linux b. it prevents unknowledgeable users from downloading programs they don't know how to operate. c. it provides protection for the developers who created linux. d. it states that anyone can copy, modify, and share the program if changes are made public.

Write a method named addall that could be placed inside the hashintset class. this method accepts another hashintset as a parameter and adds all elements from that set into the current set, if they are not already present. for example, if a set s1 contains [1, 2, 3] and another set s2 contains [1, 7, 3, 9], the call of s1.addall(s2); would change s1 to store [1, 2, 3, 7, 9] in some order. you are allowed to call methods on your set and/or the other set. do not modify the set passed in. this method should run in o(n) time where n is the number of elements in the parameter set passed in.