Whenever i know the answer to a question, and i wanna go answer it, i can't it wont let am i doing something wrong? ? how do y'all answer

In mathematics and computer science, a set is a collection in which order does not matter and there are no duplicates. in this problem, we are going to to define a class which wil allow us to create an object to represent a set of integers. you will write a program set.java to define the class set. each instance of the class set will be an object representing a set of integers.

The police department is excited to have some new motorcycle units. one officer said that these motorcycles can go from 0 miles per hour to 80 miles per hour in just 6 seconds. the officer is describing the motorcycle's a. average speed. b. distance. c. average velocity. d. acceleration.

If you want to change the speed of a layer's horizontal scrolling, what should you change? a. the x coefficient b. the y coefficient c. the virtual width d. the order of the game's layers select the best answer from the choices provided